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React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. You could even add it to your company's internal package management system so that the component is easily consumed by any React application that needsit.
ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Declaring and exporting ES6 classes in Node.js. Preface. This is my first article and English is not my native language. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje MULTIFACTOR AUTHENTICATION IN YOUR REACT APPS ― SCOTCH.IO TL;DR: Security can't be overemphasized when it comes to developing software applications. A single authentication factor system (e.g username and password) is no longer safe enough. If credentials are stolen, a user can be impersonated. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO An in-depth analysis of Ruby closures. Closures are, without a doubt, among Ruby's killer features. Blocks, procs, lambdas, and methods available in Ruby are collectively called closures. USING MYSQL ON HEROKU ― SCOTCH.IO How to install a MySQL Heroku Add-on and use it with Codeigniter 3.x. This is a guide to follow up to Deploying a PHP and MySQL web app withHeroku.
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS Why is it called memo? Per Wikipedia:. In computing, memoization is an optimization technique used primarily to speed up computer programs by storing the results of expensive function calls and returning the cached result when the same inputs occur again. ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. JWT VS OPAQUE ACCESS TOKENS: USE BOTH WITH SPRING BOOT The topic of validating an OAuth 2.0 access tokens comes up frequently on the Okta developer blog. Often we talk about how to validate JSON Web Token (JWT) based access tokens; however, this is NOT part of the OAuth 2.0 specification. JWTs are so commonly used that Spring Security supported them OPEN-SOURCE IP GEO-LOCATION API ― SCOTCH.IO Geo-location is the identification or estimation of the real-world geographic location of an Internet-connected computer terminal or device. Basically, we can get location data from their IP address. Geo-location offers a lot of advantages and increase level of customization to a we BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IOAUTHOR: LEEBRANDT
React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. You could even add it to your company's internal package management system so that the component is easily consumed by any React application that needsit.
ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Declaring and exporting ES6 classes in Node.js. Preface. This is my first article and English is not my native language. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje MULTIFACTOR AUTHENTICATION IN YOUR REACT APPS ― SCOTCH.IO TL;DR: Security can't be overemphasized when it comes to developing software applications. A single authentication factor system (e.g username and password) is no longer safe enough. If credentials are stolen, a user can be impersonated. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO An in-depth analysis of Ruby closures. Closures are, without a doubt, among Ruby's killer features. Blocks, procs, lambdas, and methods available in Ruby are collectively called closures. USING MYSQL ON HEROKU ― SCOTCH.IO How to install a MySQL Heroku Add-on and use it with Codeigniter 3.x. This is a guide to follow up to Deploying a PHP and MySQL web app withHeroku.
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS Why is it called memo? Per Wikipedia:. In computing, memoization is an optimization technique used primarily to speed up computer programs by storing the results of expensive function calls and returning the cached result when the same inputs occur again. ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. JWT VS OPAQUE ACCESS TOKENS: USE BOTH WITH SPRING BOOT The topic of validating an OAuth 2.0 access tokens comes up frequently on the Okta developer blog. Often we talk about how to validate JSON Web Token (JWT) based access tokens; however, this is NOT part of the OAuth 2.0 specification. JWTs are so commonly used that Spring Security supported them ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje 10 REACT CHALLENGES (BEGINNER) COURSES ― SCOTCH.IO Test your React skills with these 10 challenges! Welcome to 10 Days of React Challenges (Beginner's Edition)! This will be a great way to test your React knowledge and also build some foundational Reactskills.
CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. ADDING CALCULATOR ― SCOTCH.IO Storing data in a front-end application and reusing the stored data throughout the application or app component, is an essential piece of modern front-end applications. DISPLAYING LISTS IN REACT AND JSX ― SCOTCH.IO Showing a list of items is crucial in every single application we'll build. Using JSX we can show lists using JavaScript's built-in Array.map() method. The DECLARING ANGULARJS MODULES FOR MINIFICATION ― SCOTCH.IO Until recently, I never gave much thought to minifying my Angular files. I started using Grunt in my MEAN stack workflow however, and that setup minifies all my Angular files into one main file.. This has helped since I don't have to load controllers and services anymore. GET STARTED WITH CREATING A RESTFUL API ENDPOINTS IN Create a simple api endpoint developed in nodejs and expressjs by building a simple app API. JWT VS OPAQUE ACCESS TOKENS: USE BOTH WITH SPRING BOOT The topic of validating an OAuth 2.0 access tokens comes up frequently on the Okta developer blog. Often we talk about how to validate JSON Web Token (JWT) based access tokens; however, this is NOT part of the OAuth 2.0 specification. JWTs are so commonly used that Spring Security supported them FIND, FIX, AND PREVENT TERRAFORM MISCONFIGURATIONS WITH Infrastructure-as-code (sometimes referred to as infrastructure code or abbreviated as IaC) is used to automate infrastructure deployment, scaling, and management using machine-readable configuration files.. Using infrastructure-as-code. Before we dive in, let’s talk a bit about the use cases of infrastructure-as-code frameworks likeTerraform.
HOW TO ADD GOOGLE'S TWO FACTOR AUTHENTICATION Laravel is a wonderful PHP framework that makes building applications with PHP a lot of fun. One of the nice features of Laravel is how easy it is to set up user authentication. UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. THE MANY WAYS TO USE NGCLASS ― SCOTCH.IO A more advanced method of using ngClass (and one that you will probably use the most) is to evaluate an expression. The way this works is that if a variable or expression evaluates to. true, you can apply a certain class. If not, then the class won't be applied. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in FETCH AND DISPLAY FROM AN API ― SCOTCH.IO A number of web applications and sites rely on third-party APIs and services for data. In this React challenge, we will learn to make an API request to a third party API service. This is an open API. Hence, it requires no authentication. GETTING STARTED WITH SASS (WITH INTERACTIVE There are several ways you can compile Sass: The original Ruby Sass binary. Install it with gem install sass, and compile it by running sassc myfile.scss myfile.css. A GUI app such as Hammer, CodeKit, or Compass. My personal favorite libsass, which is a blazing fast Sass compiler written in C. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
HOW TO BUILD AN AWS LAMBDA FUNCTION IN TYPESCRIPT ― SCOTCH.IO In this post we'll be building a node application in Typescript that will be deployed to a lambda function in Amazon Web Services (AWS). Lambdas are used for a variety of tasks and can be written in popular programming languages like C#, Go, Java, Python, and even PowerShell. LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
REACT NATIVE APP WITH AUTHENTICATION AND USER MANAGEMENT While React Native brings many efficiencies, it can also be complicated to work with when it comes to developing authentication and user management functions. (React Native is a Javascript framework designed to improve users’ ability to create cross-platform applications with native UI UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. THE MANY WAYS TO USE NGCLASS ― SCOTCH.IO A more advanced method of using ngClass (and one that you will probably use the most) is to evaluate an expression. The way this works is that if a variable or expression evaluates to. true, you can apply a certain class. If not, then the class won't be applied. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in FETCH AND DISPLAY FROM AN API ― SCOTCH.IO A number of web applications and sites rely on third-party APIs and services for data. In this React challenge, we will learn to make an API request to a third party API service. This is an open API. Hence, it requires no authentication. GETTING STARTED WITH SASS (WITH INTERACTIVE There are several ways you can compile Sass: The original Ruby Sass binary. Install it with gem install sass, and compile it by running sassc myfile.scss myfile.css. A GUI app such as Hammer, CodeKit, or Compass. My personal favorite libsass, which is a blazing fast Sass compiler written in C. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
HOW TO BUILD AN AWS LAMBDA FUNCTION IN TYPESCRIPT ― SCOTCH.IO In this post we'll be building a node application in Typescript that will be deployed to a lambda function in Amazon Web Services (AWS). Lambdas are used for a variety of tasks and can be written in popular programming languages like C#, Go, Java, Python, and even PowerShell. LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
REACT NATIVE APP WITH AUTHENTICATION AND USER MANAGEMENT While React Native brings many efficiencies, it can also be complicated to work with when it comes to developing authentication and user management functions. (React Native is a Javascript framework designed to improve users’ ability to create cross-platform applications with native UI UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. BUILD A WEB TRAFFIC MONITOR WITH PYTHON ― SCOTCH.IO Let’s create our project folder, and activate a virtual environment in it. Run the commands below: $ mkdir python-pusher-traffic-monitor $ cd python-pusher-traffic-monitor $ virtualenv .venv $ source .venv/bin/activate # Linux based systems $ \path\to\env\Scripts\activate # Windows users. BUILD A TO-DO APP WITH VUE.JS 2 ― SCOTCH.IO Vuilding a Vue.js app is a cinch with this in depth article. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. THE ANATOMY OF A JSON WEB TOKEN ― SCOTCH.IO The third and final part of our JSON Web Token is going to be the signature. This signature is made up of a hash of the following components: the header. the payload. secret. This is how we get the third part of the JWT: var encodedString = base64UrlEncode (header) + "." + base64UrlEncode (payload); HMACSHA256 (encodedString, 'secret'); HOW TO BUILD AN EXECUTABLE WITH NODEJS ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. PROCESSING A FORM WITH VUE ― SCOTCH.IO Processing a form can be a long and tedious task when using vanilla JavaScript or jQuery. While those tools can help to make your AJAX forms very clean, and provide your user with immediate feedback and validations, writing the code can become a bit convoluted. Processingforms with Vue ho
LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
HOW TO IMPLEMENT A CUSTOM VALIDATOR DIRECTIVE (CONFIRM Angular 2 supports a few very useful native validators: required: validate if the field is mandatory; minlength: validate the minimum length of the field; maxlength: validate the maximum length of the field; pattern: validate if the input value meets the defined pattern, e.g. email; We will build a form to capture user information based onthis interface.
WHAT'S THE DIFFERENCE BETWEEN VMS AND EC2 Most people describe EC2 Instances as being like VMs, used in the AWS cloud. In general, this is true but there are some key differences to be aware of. Setting up either technology can be a big cost commitment. You can make the best decision for UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. THE MANY WAYS TO USE NGCLASS ― SCOTCH.IO A more advanced method of using ngClass (and one that you will probably use the most) is to evaluate an expression. The way this works is that if a variable or expression evaluates to. true, you can apply a certain class. If not, then the class won't be applied. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in FETCH AND DISPLAY FROM AN API ― SCOTCH.IO A number of web applications and sites rely on third-party APIs and services for data. In this React challenge, we will learn to make an API request to a third party API service. This is an open API. Hence, it requires no authentication. GETTING STARTED WITH SASS (WITH INTERACTIVE There are several ways you can compile Sass: The original Ruby Sass binary. Install it with gem install sass, and compile it by running sassc myfile.scss myfile.css. A GUI app such as Hammer, CodeKit, or Compass. My personal favorite libsass, which is a blazing fast Sass compiler written in C. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
HOW TO BUILD AN AWS LAMBDA FUNCTION IN TYPESCRIPT ― SCOTCH.IO In this post we'll be building a node application in Typescript that will be deployed to a lambda function in Amazon Web Services (AWS). Lambdas are used for a variety of tasks and can be written in popular programming languages like C#, Go, Java, Python, and even PowerShell. LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
REACT NATIVE APP WITH AUTHENTICATION AND USER MANAGEMENT While React Native brings many efficiencies, it can also be complicated to work with when it comes to developing authentication and user management functions. (React Native is a Javascript framework designed to improve users’ ability to create cross-platform applications with native UI UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. THE MANY WAYS TO USE NGCLASS ― SCOTCH.IO A more advanced method of using ngClass (and one that you will probably use the most) is to evaluate an expression. The way this works is that if a variable or expression evaluates to. true, you can apply a certain class. If not, then the class won't be applied. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in FETCH AND DISPLAY FROM AN API ― SCOTCH.IO A number of web applications and sites rely on third-party APIs and services for data. In this React challenge, we will learn to make an API request to a third party API service. This is an open API. Hence, it requires no authentication. GETTING STARTED WITH SASS (WITH INTERACTIVE There are several ways you can compile Sass: The original Ruby Sass binary. Install it with gem install sass, and compile it by running sassc myfile.scss myfile.css. A GUI app such as Hammer, CodeKit, or Compass. My personal favorite libsass, which is a blazing fast Sass compiler written in C. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
HOW TO BUILD AN AWS LAMBDA FUNCTION IN TYPESCRIPT ― SCOTCH.IO In this post we'll be building a node application in Typescript that will be deployed to a lambda function in Amazon Web Services (AWS). Lambdas are used for a variety of tasks and can be written in popular programming languages like C#, Go, Java, Python, and even PowerShell. LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
REACT NATIVE APP WITH AUTHENTICATION AND USER MANAGEMENT While React Native brings many efficiencies, it can also be complicated to work with when it comes to developing authentication and user management functions. (React Native is a Javascript framework designed to improve users’ ability to create cross-platform applications with native UI UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. BUILD A WEB TRAFFIC MONITOR WITH PYTHON ― SCOTCH.IO Let’s create our project folder, and activate a virtual environment in it. Run the commands below: $ mkdir python-pusher-traffic-monitor $ cd python-pusher-traffic-monitor $ virtualenv .venv $ source .venv/bin/activate # Linux based systems $ \path\to\env\Scripts\activate # Windows users. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in DISPLAYING LISTS IN REACT AND JSX ― SCOTCH.IO Conclusion. Showing a list of items is crucial in every single application we'll build. Using JSX we can show lists using JavaScript's built-in Array.map () method. The .map () method is often used to take one piece of data and convert it to another. In our scenarios, we are taking data and converting it BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. PROCESSING A FORM WITH VUE ― SCOTCH.IO Processing a form can be a long and tedious task when using vanilla JavaScript or jQuery. While those tools can help to make your AJAX forms very clean, and provide your user with immediate feedback and validations, writing the code can become a bit convoluted. Processingforms with Vue ho
LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca WHAT'S THE DIFFERENCE BETWEEN VMS AND EC2 Most people describe EC2 Instances as being like VMs, used in the AWS cloud. In general, this is true but there are some key differences to be aware of. Setting up either technology can be a big cost commitment. You can make the best decision for DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. THE MANY WAYS TO USE NGCLASS ― SCOTCH.IO A more advanced method of using ngClass (and one that you will probably use the most) is to evaluate an expression. The way this works is that if a variable or expression evaluates to. true, you can apply a certain class. If not, then the class won't be applied. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in FETCH AND DISPLAY FROM AN API ― SCOTCH.IO A number of web applications and sites rely on third-party APIs and services for data. In this React challenge, we will learn to make an API request to a third party API service. This is an open API. Hence, it requires no authentication. GETTING STARTED WITH SASS (WITH INTERACTIVE There are several ways you can compile Sass: The original Ruby Sass binary. Install it with gem install sass, and compile it by running sassc myfile.scss myfile.css. A GUI app such as Hammer, CodeKit, or Compass. My personal favorite libsass, which is a blazing fast Sass compiler written in C. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
HOW TO BUILD AN AWS LAMBDA FUNCTION IN TYPESCRIPT ― SCOTCH.IO In this post we'll be building a node application in Typescript that will be deployed to a lambda function in Amazon Web Services (AWS). Lambdas are used for a variety of tasks and can be written in popular programming languages like C#, Go, Java, Python, and even PowerShell. REACT NATIVE APP WITH AUTHENTICATION AND USER MANAGEMENT While React Native brings many efficiencies, it can also be complicated to work with when it comes to developing authentication and user management functions. (React Native is a Javascript framework designed to improve users’ ability to create cross-platform applications with native UI UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. THE MANY WAYS TO USE NGCLASS ― SCOTCH.IO A more advanced method of using ngClass (and one that you will probably use the most) is to evaluate an expression. The way this works is that if a variable or expression evaluates to. true, you can apply a certain class. If not, then the class won't be applied. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in FETCH AND DISPLAY FROM AN API ― SCOTCH.IO A number of web applications and sites rely on third-party APIs and services for data. In this React challenge, we will learn to make an API request to a third party API service. This is an open API. Hence, it requires no authentication. GETTING STARTED WITH SASS (WITH INTERACTIVE There are several ways you can compile Sass: The original Ruby Sass binary. Install it with gem install sass, and compile it by running sassc myfile.scss myfile.css. A GUI app such as Hammer, CodeKit, or Compass. My personal favorite libsass, which is a blazing fast Sass compiler written in C. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
HOW TO BUILD AN AWS LAMBDA FUNCTION IN TYPESCRIPT ― SCOTCH.IO In this post we'll be building a node application in Typescript that will be deployed to a lambda function in Amazon Web Services (AWS). Lambdas are used for a variety of tasks and can be written in popular programming languages like C#, Go, Java, Python, and even PowerShell. REACT NATIVE APP WITH AUTHENTICATION AND USER MANAGEMENT While React Native brings many efficiencies, it can also be complicated to work with when it comes to developing authentication and user management functions. (React Native is a Javascript framework designed to improve users’ ability to create cross-platform applications with native UI UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. BUILD A WEB TRAFFIC MONITOR WITH PYTHON ― SCOTCH.IO Let’s create our project folder, and activate a virtual environment in it. Run the commands below: $ mkdir python-pusher-traffic-monitor $ cd python-pusher-traffic-monitor $ virtualenv .venv $ source .venv/bin/activate # Linux based systems $ \path\to\env\Scripts\activate # Windows users. HOW TO USE SASS MIXINS ― SCOTCH.IO Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in DISPLAYING LISTS IN REACT AND JSX ― SCOTCH.IO Conclusion. Showing a list of items is crucial in every single application we'll build. Using JSX we can show lists using JavaScript's built-in Array.map () method. The .map () method is often used to take one piece of data and convert it to another. In our scenarios, we are taking data and converting it BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. PROCESSING A FORM WITH VUE ― SCOTCH.IO Processing a form can be a long and tedious task when using vanilla JavaScript or jQuery. While those tools can help to make your AJAX forms very clean, and provide your user with immediate feedback and validations, writing the code can become a bit convoluted. Processingforms with Vue ho
LOCAL STORAGE VS SESSION STORAGE VS COOKIE ― SCOTCH.IO LocalStorage. Stores data with no expiration date, and gets cleared only through JavaScript, or clearing the Browser cache / Locally Stored Data. Storage limit is the maximum amongst the three. SessionStorage. The sessionStorage object stores data only for a session, meaning that the data is stored until the browser (or tab) isclosed.
THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca WHAT'S THE DIFFERENCE BETWEEN VMS AND EC2 Most people describe EC2 Instances as being like VMs, used in the AWS cloud. In general, this is true but there are some key differences to be aware of. Setting up either technology can be a big cost commitment. You can make the best decision for DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO BUILD A GOOGLE CHROME EXTENSION ― SCOTCH.IOAUTHOR: ONWUKAGIDEON
Have you ever wanted to create your own Chrome extension? Have you ever wondered how difficult the process would be or what it would entail? Well, it turns out it is super easy—probably a lot easier than you ever imagined. What we are going to build We would bebuilding a basic
OPEN-SOURCE IP GEO-LOCATION API ― SCOTCH.IO IP Geolocation API, is a free to use Geo-location service. The code is open-source which means you can deploy your version of the product and let it run all the house keeping for you. It is written in Python. So, if you need to fork and modify, you probably need to know how to code in Python. When a request comes into the application, BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca USING MYSQL ON HEROKU ― SCOTCH.IO In the Add-ons search field, type ClearDB MySQL and select it. Choose the free plan (Ignite) and click provision. So now you’ve got MySQL installed, now we need to set it up so the app uses our local database.php file on our machine when we deploy to heroku. Go to your apps listing on heroku and choose your app. Click on the Settings tab. REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO BUILD A GOOGLE CHROME EXTENSION ― SCOTCH.IOAUTHOR: ONWUKAGIDEON
Have you ever wanted to create your own Chrome extension? Have you ever wondered how difficult the process would be or what it would entail? Well, it turns out it is super easy—probably a lot easier than you ever imagined. What we are going to build We would bebuilding a basic
OPEN-SOURCE IP GEO-LOCATION API ― SCOTCH.IO IP Geolocation API, is a free to use Geo-location service. The code is open-source which means you can deploy your version of the product and let it run all the house keeping for you. It is written in Python. So, if you need to fork and modify, you probably need to know how to code in Python. When a request comes into the application, BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca USING MYSQL ON HEROKU ― SCOTCH.IO In the Add-ons search field, type ClearDB MySQL and select it. Choose the free plan (Ignite) and click provision. So now you’ve got MySQL installed, now we need to set it up so the app uses our local database.php file on our machine when we deploy to heroku. Go to your apps listing on heroku and choose your app. Click on the Settings tab. REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. HOW TO BUILD A GOOGLE CHROME EXTENSION ― SCOTCH.IO Have you ever wanted to create your own Chrome extension? Have you ever wondered how difficult the process would be or what it would entail? Well, it turns out it is super easy—probably a lot easier than you ever imagined. What we are going to build We would bebuilding a basic
BUILD A WEB TRAFFIC MONITOR WITH PYTHON ― SCOTCH.IO Let’s create our project folder, and activate a virtual environment in it. Run the commands below: $ mkdir python-pusher-traffic-monitor $ cd python-pusher-traffic-monitor $ virtualenv .venv $ source .venv/bin/activate # Linux based systems $ \path\to\env\Scripts\activate # Windows users. OPEN-SOURCE IP GEO-LOCATION API ― SCOTCH.IO Geo-location is the identification or estimation of the real-world geographic location of an Internet-connected computer terminal or device. Basically, we can get location data from their IP address. Geo-location offers a lot of advantages and increase level of customization to a we 10 REACT CHALLENGES (BEGINNER) COURSES ― SCOTCH.IO Welcome to 10 Days of React Challenges (Beginner's Edition)! This will be a great way to test your React knowledge and also build some foundational React skills. There are 10 challenges in total. Feel free to do them at your own pace, however you feel comfortable. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
JWT VS OPAQUE ACCESS TOKENS: USE BOTH WITH SPRING BOOT JWT vs Opaque Access Tokens: Use Both With Spring Boot. The topic of validating an OAuth 2.0 access tokens comes up frequently on the Okta developer blog. Often we talk about how to validate JSON Web Token (JWT) based access tokens; however, this is NOT part of the OAuth 2.0 specification. JWTs are so commonly used that Spring Security QUICK AND SIMPLE SEARCH FILTER USING VANILLA When building Single Page Applications a feature I frequently find myself adding is a simple search filter. Nothing too in depth, I'll just want a text field to be able to quickly filter over items to find specific ones. I'm going to share what I do, because it's quick toimplement, perfor
CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. RYAN CHENKIE'S PROFILE ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. WRITE FOR SCOTCH ― SCOTCH.IO Thanks for your interest in joining the Scotch writing team. We have very high standards and pride ourselves on a rigorous approval process. Browse the Scotch site and you'll notice that high quality is something we care deeply about. Join the growing stable of UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. CREATING THE HOME PAGE ― SCOTCH.IO Creating the Home Page. Let's start building out the pages for our application. Since this course is more about Angular techniques than about styling and designing a website, we'll keep our pages fairly simple. The main parts to focus on in this lesson is that we'll add a giant hero section and also add an image as the background image. BUILDING AN ONLINE RETAIL DASHBOARD IN REACT ― SCOTCH.IO Once you find it, click “Enable” and after it is processed you should be seeing the page below. In the sidebar, head over to “Credentials” and click the “Create credentials” button and select “API Key”. Click the “Restrict Key” and set a name for it (I’ve named it as EcommerceDashboardAPIKey ). BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. ANGULAR CLI: SERVING AND BUILDING FOR PRODUCTION ― SCOTCH.IO We saw how to serve our application in the last lesson using ng serve. Let's dive into this a bit more and see what the Angular CLI provides to us. Serving Our Application By using ng serve we saw that five files are generated for us. CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. YOUR SOURCE MAPS ARE BROKEN. HERE'S HOW TO FIX THEM To solve this, you need to version your files and your source maps, either by: Versioning each filename, e.g., script.abc123.min.js. Versioning a parent folder, e.g., abc123/script.min.js. Whichever you strategy you choose doesn’t matter, only that you use it consistently for all your JavaScript assets. RYAN CHENKIE'S PROFILE ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. WRITE FOR SCOTCH ― SCOTCH.IO Thanks for your interest in joining the Scotch writing team. We have very high standards and pride ourselves on a rigorous approval process. Browse the Scotch site and you'll notice that high quality is something we care deeply about. Join the growing stable of UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. CREATING THE HOME PAGE ― SCOTCH.IO Creating the Home Page. Let's start building out the pages for our application. Since this course is more about Angular techniques than about styling and designing a website, we'll keep our pages fairly simple. The main parts to focus on in this lesson is that we'll add a giant hero section and also add an image as the background image. BUILDING AN ONLINE RETAIL DASHBOARD IN REACT ― SCOTCH.IO Once you find it, click “Enable” and after it is processed you should be seeing the page below. In the sidebar, head over to “Credentials” and click the “Create credentials” button and select “API Key”. Click the “Restrict Key” and set a name for it (I’ve named it as EcommerceDashboardAPIKey ). BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. ANGULAR CLI: SERVING AND BUILDING FOR PRODUCTION ― SCOTCH.IO We saw how to serve our application in the last lesson using ng serve. Let's dive into this a bit more and see what the Angular CLI provides to us. Serving Our Application By using ng serve we saw that five files are generated for us. CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. YOUR SOURCE MAPS ARE BROKEN. HERE'S HOW TO FIX THEM To solve this, you need to version your files and your source maps, either by: Versioning each filename, e.g., script.abc123.min.js. Versioning a parent folder, e.g., abc123/script.min.js. Whichever you strategy you choose doesn’t matter, only that you use it consistently for all your JavaScript assets. RYAN CHENKIE'S PROFILE ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. WRITE FOR SCOTCH ― SCOTCH.IO Thanks for your interest in joining the Scotch writing team. We have very high standards and pride ourselves on a rigorous approval process. Browse the Scotch site and you'll notice that high quality is something we care deeply about. Join the growing stable of UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. CREATING THE HOME PAGE ― SCOTCH.IO Creating the Home Page. Let's start building out the pages for our application. Since this course is more about Angular techniques than about styling and designing a website, we'll keep our pages fairly simple. The main parts to focus on in this lesson is that we'll add a giant hero section and also add an image as the background image. BUILDING AN ONLINE RETAIL DASHBOARD IN REACT ― SCOTCH.IO Once you find it, click “Enable” and after it is processed you should be seeing the page below. In the sidebar, head over to “Credentials” and click the “Create credentials” button and select “API Key”. Click the “Restrict Key” and set a name for it (I’ve named it as EcommerceDashboardAPIKey ). BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. ANGULAR CLI: SERVING AND BUILDING FOR PRODUCTION ― SCOTCH.IO We saw how to serve our application in the last lesson using ng serve. Let's dive into this a bit more and see what the Angular CLI provides to us. Serving Our Application By using ng serve we saw that five files are generated for us. CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. YOUR SOURCE MAPS ARE BROKEN. HERE'S HOW TO FIX THEM To solve this, you need to version your files and your source maps, either by: Versioning each filename, e.g., script.abc123.min.js. Versioning a parent folder, e.g., abc123/script.min.js. Whichever you strategy you choose doesn’t matter, only that you use it consistently for all your JavaScript assets. RYAN CHENKIE'S PROFILE ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. WRITE FOR SCOTCH ― SCOTCH.IO Thanks for your interest in joining the Scotch writing team. We have very high standards and pride ourselves on a rigorous approval process. Browse the Scotch site and you'll notice that high quality is something we care deeply about. Join the growing stable of UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. CREATING THE HOME PAGE ― SCOTCH.IO Creating the Home Page. Let's start building out the pages for our application. Since this course is more about Angular techniques than about styling and designing a website, we'll keep our pages fairly simple. The main parts to focus on in this lesson is that we'll add a giant hero section and also add an image as the background image. BUILDING AN ONLINE RETAIL DASHBOARD IN REACT ― SCOTCH.IO Once you find it, click “Enable” and after it is processed you should be seeing the page below. In the sidebar, head over to “Credentials” and click the “Create credentials” button and select “API Key”. Click the “Restrict Key” and set a name for it (I’ve named it as EcommerceDashboardAPIKey ). BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO Create a Star Rating Component. Consume the Rating Component. Add Routing to the Actual Components. Rate Some Beers. Do Even More with React, Firebase, and Okta for Secure Authentication. React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. YOUR SOURCE MAPS ARE BROKEN. HERE'S HOW TO FIX THEM To solve this, you need to version your files and your source maps, either by: Versioning each filename, e.g., script.abc123.min.js. Versioning a parent folder, e.g., abc123/script.min.js. Whichever you strategy you choose doesn’t matter, only that you use it consistently for all your JavaScript assets. CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. BUILD A SERVER-SIDE RENDERED VUE APP WITH NUXT.JS npm install -g vue-cli. Once installed, you can move on to creating Nuxt.js project with it: vue init nuxt/starter portfolio. We can the project portfolio, you can name it whatever you like. Next, we need to install the dependencies: cd portfolio npm install. With RYAN CHENKIE'S PROFILE ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
What is a Mixin? A Mixin is a block of code that lets us group CSS declarations we may reuse throughout our site. Take for example, displaying an HTML element as a Flex element. ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Declaring and exporting ES6 classes in Node.js. Preface. This is my first article and English is not my native language. THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO An in-depth analysis of Ruby closures. Closures are, without a doubt, among Ruby's killer features. Blocks, procs, lambdas, and methods available in Ruby are collectively called closures. REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React 16.6.0 is released!With it comes a host of new features including the two big ones:. React.memo() React.lazy(): Code-splitting and lazy-loading with React Suspense ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO TLDR - For an Create React App application, install the Debugger for Chrome extension, create a debug configuration in VS Code, and thenrun in debug mode.
ROUTING TO TWO PAGES ― SCOTCH.IO Now that we have two pages, let's start routing to them. We want to be able to click around to our pages. Currently we are showing both our HomeComponent and ContactComponent right on the home page. That won't do! Adding Routes Since we created this proje HOW TO USE SASS MIXINS ― SCOTCH.IOGETTING STARTED WITH SASSSAMUELOLORUNTOBA
Creating a Mixin is very simple, all we have to do is use @mixin command followed by a space and our Mixin name, then we open and close our curly brackets. Something like this. @mixin flex { display: -webkit-flex; display: flex; } Now we can add our flex declaration and use the Mixin anywhere in ABOUT CLASSES IN NODE.JS ― SCOTCH.IO Classes is the most important fundamental concept in Object Oriented Programming. Therefore, it is important to know how to work with them. ES6 gives us very nice new syntax for class declaration. class Class1{ constructor(arg){ console.log(‘Initialize Class1 object’); console.log(‘Arg=’, arg); } } To create a new object: THE MANY WAYS TO RETURN JSX ― SCOTCH.IO JSX is a great tool because it has so much flexibility. There are many ways to achieve the same thing. For this reason, it can be confusing for new developers when they see different tactics for defining and returning JSX elements. Let's take a look at the different ways we ca TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. CREATING AN ANGULAR HEADER AND FOOTER ― SCOTCH.IO The header and footer are the two components that we usually start with when building out a new website. Let's go ahead and create these new parts of our site. Adding a Header and Footer the Wrong Way Let's talk about how you would normally add a header. We would probably lookint
UNDERSTANDING RUBY CLOSURES ― SCOTCH.IO The simplest kind of closure is a block. A block is a chunk of code that can be passed to an object/method and is executed under the context of that object. If you have worked with arrays, you have probably used an array's each method that allows you to iteratethrough the
REACT 16.6: REACT.MEMO() FOR FUNCTIONAL COMPONENTS React.memo () is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo (), we can have only some componentsrender.
ADDING AN IMAGE/LOGO IN ANGULAR ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick. DEBUGGING CREATE REACT APP APPLICATIONS IN VISUAL STUDIO npm install -g create-react-app. After that finishes, you'll need to actually generate your new application. This will take a bit as it needs to install LOTS of NPM packages. create-react-app my-app. Open the project in VS Code and you should see the following. WRITE FOR SCOTCH ― SCOTCH.IO Thanks for your interest in joining the Scotch writing team. We have very high standards and pride ourselves on a rigorous approval process. Browse the Scotch site and you'll notice that high quality is something we care deeply about. UNDERSTANDING MEMOIZATION IN JAVASCRIPT ― SCOTCH.IO Memoization is an optimization technique that speeds up applications by storing the results of expensive function calls and returning the cached result when the same inputs occur again.. If this doesn’t make much sense to you yet, that’s okay. This article provides an in-depth explanation of why memoization is necessary, what it is, how it can be implemented and when it should be used. CREATING THE HOME PAGE ― SCOTCH.IO Let's start building out the pages for our application. Since this course is more about Angular techniques than about styling and designing a website, we'll keep our pages fairly simple. The main parts to focus on in this lesson is that we'll add a giant hero section and also add an image BUILDING AN ONLINE RETAIL DASHBOARD IN REACT ― SCOTCH.IO FusionCharts is a JavaScript Charting Library for developers. In this tutorial, we’ll be focusing on creating a dashboard for an OnlineRetail Store.
ANGULAR CLI: SERVING AND BUILDING FOR PRODUCTION ― SCOTCH.IO We saw how to serve our application in the last lesson using ng serve. Let's dive into this a bit more and see what the Angular CLI provides to us. Serving Our Application By using ng serve we saw that five files are generated for us. TESTING REACT AND REDUX APPS WITH JEST ― SCOTCH.IO Jest is a zero configuration JavaScript testing framework developed by Facebook. It's great for general testing but more so for testing React. Why is it important to test your applications? Poor user experiences can drive customers away from your applications. BUILD A STAR RATING COMPONENT FOR REACT ― SCOTCH.IO React gives the ability to create a component for rating that can be used and re-used anyplace a rating component is needed. You could even add it to your company's internal package management system so that the component is easily consumed by any React application that needsit.
YOUR SOURCE MAPS ARE BROKEN. HERE'S HOW TO FIX THEM Source maps are awesome. Why? Because they are used to display your original JavaScript while debugging, which is a lot easier to look at than minified production code. In a sense, source maps are the decoder ring to your secret (minified) code. However, they can be tricky toget working p
CONVERTING CSS IN REACT TO STYLED COMPONENTS ― SCOTCH.IO Styled Components is one of those interesting topics that developers love to argue about. It's a brand new way of doing things that many people just aren't ready to acknowledge. Regardless, just because something is different doesn't mean it isn't worth a try. RYAN CHENKIE'S PROFILE ― SCOTCH.IO Top shelf learning. Dev tutorials explaining the code and the choices behind it all.. Made with 💖 by @chris__sev and Nick.Scotch
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EASILY DEPLOY A FULLSTACK NEXT.JS APP WITH VERCELAllen Hai
Developing and shipping production-ready applications to the web today couldn't be easier than with Next.js and Vercel. It provides a world-class developer experience right out of the box and is optimized for powering high-performance production workloads. Read on to get an overview of what makes...Read more
WHERE SHOULD YOU START? LEARN REACT FROM SCRATCH LEARN JAVASCRIPT FROM SCRATCH LEARN VUE FROM SCRATCH ADD SOCIAL LOGIN TO IONIC APPSMatt Raible
August 24, 2020
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Apple announced a Sign in with Apple service at its WWDC developer conference in June 2019. If you're familiar with social login with Google or Facebook, it's very similar. Most of these identity services use OAuth and OpenID Connect (OIDC), and Apple's implementation is similar. Today I'...Read more
FIND, FIX, AND PREVENT TERRAFORM MISCONFIGURATIONS WITH BRIDGECREWGuy
August 03, 2020
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In this tutorial, you’ll learn how to scan infrastructure-as-code as part of your code review process. Using Terraform, GitHub Actions, and Bridgecrew, we’ll show you how to find, fix, and prevent cloud misconfigurations. ...Read more
BUILD YOUR FIRST DENO APP WITH AUTHENTICATIONLee Brandt
July 06, 2020
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The creator of Node.js, Ryan Dahl has authored a new framework for designing web applications. He went back and fixed some mistakes he made in hindsight, taking advantage of new technologies that were not available at the time he originally wrote Node. The result is D...Read more
JWT VS OPAQUE ACCESS TOKENS: USE BOTH WITH SPRING BOOTBrian Demers
June 29, 2020
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The topic of validating an OAuth 2.0 access tokens comes up frequently on the Okta developer blog. Often we talk about how to validate JSON Web Token (JWT) based access tokens; however, this is NOT part of the OAuth 2.0 specification. JWTs are so commonly used that Spring Security supported them ...Read more
GATSBY-IMAGE W/ SUPPORT FOR PWA AND DARK MODEWilliam Imoh
June 23, 2020
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Building responsive web apps involves the cumbersome task of adding media queries in CSS. Thanks to the rapid advancements in CSS and CSS-in-JS libraries, web responsiveness is only a few lines of code away. This three-part series explains how to use the ...Read more
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HOW TO WRITE A TECHNICAL TUTORIAL - ANNOUNCING A NEW BOOK ON WRITINGFOR DEVELOPERS
Chris Sev
June 18, 2020
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Writing for Software Developers, a new book by Philip Kiely, teaches you everything that you need to know about creating outstanding technical content. It gives step-by-step guidance on the craft and the business of creating technical tutorials...Read more
SERVING REMOTE OPTIMIZED IMAGES W/ GATSBY-IMAGE W/O GRAPHQLWilliam Imoh
May 20, 2020
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Part 1 of this series chronicles the process of using remote images from Cloudinary in GatsbyJS projects through GraphQL queries. Here in part 2, you’ll learn how to — Leverage remote images s...Read more
REACT + DOCKER WITH SECURITY IN 10 MINUTESMatt Raible
May 18, 2020
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You've built a React app, but now you need to deploy it. What do you do? First, it's probably best to choose a cloud provider as they're typically low-cost and easy to deploy to. Most cloud providers offer a way to deploy a static site. A built React app is just JavaScript,HTML, and CSS. ...
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SERVING REMOTE OPTIMIZED IMAGES W/ GATSBY-IMAGEWilliam Imoh
May 18, 2020
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Even though a picture is worth a thousand words, as the English adage goes, it costs a pretty penny to store and deliver images online. Hence the common goal of many modern web-development tools to minimize the impact of images and other media assets on site performance. Thispost, part 1 ...
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MAKE A STELLAR REACT + NASA APP IN 10 MINUTESKapehe
May 13, 2020
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One of the most stellar open API's out there is the NASA Astronomy Picture of the Day. In today's article, we are going to mess around with that API and build an application that displays the photo of the day, the title of that photo, the cur...Read more
AIRTABLE API TUTORIAL WITH CURL AND JAVASCRIPTJames Quick
May 12, 2020
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If you're looking for a quick and easy way to persist your application data, look no further than Airtable. Airtable is basically an excel sheet like database that has tons of flexibility and a GUI for inspecting/creating data. I've used Airtable as the DB for a few of my demo apps recentl...Read more
DEPLOYING LARAVEL TO DIGITALOCEANChimezie Enyinnaya
May 11, 2020
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In this tutorial, I’ll be showing you how to deploy a Laravel application to DigitalOcean. For the purpose of this tutorial, I have created a demo Laravel application, which...Read more
FEATURE FLAGGING IN YOUR REACT NATIVE APP IN 5 MINUTESCloudBees
May 11, 2020
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CloudBees Rollout is an advanced feature flagging solution that lets your development teams quickly build and deploy applications without compromising on safety. By providing a gradual release mechanism and a simple way to define target audiences, ...Read more
VS CODE APRIL UPDATE IS OUT W/ FASTER SYNTAX HIGHLIGHTINGChris Sev
May 07, 2020
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It's incredible what VS Code is able to do from month to month. The dev team has consistently put out features and updates every month. We've got 1.45 out this month with some nice additions. Add this update to the announcement of ...Read more
DEEP DIVE INTO CSS GRIDHammad Ahmed
May 07, 2020
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Introduction This is the advanced version of the introductory tutorial on Grid I previously published, here, on Scotch. If you are new to Grid, be sure to check it out first. This tutorial will dive dee...Read more
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