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SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the CONSUME RESTFUL API ENDPOINTS WITHIN A GOLANG APPLICATION I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API.However, I recently received questions on the subject of consuming data from other APIs from within a Goapplication.
FIND ALL TABLES IN AN ORACLE DATABASE BY COLUMN NAME Lucky for us, there is a convenient way to search for the tables you’re looking for based on column information. In your SQL tool of choice take the following command: select table_name from all_tab_columns where column_name = 'PICK_COLUMN'; If you’ve got DBA privileges, you can try this command instead: USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
PRINT DATA TO PAPER OR PDF USING IONIC FRAMEWORK Have you ever built an app that has heavy content that might need to one day be printed to a PDF or to paper? Maybe you’re building the next great email or news app, both of which have an expectation that you should be able to print what you’re reading. USING AN OAUTH 2.0 SERVICE WITH IONIC FRAMEWORK Basic instructions on using the InAppBrowser with Ionic Framework can be found in one of my earlier blog posts. If you’re looking to use Oauth in an Ionic 2 application, visit here, otherwise proceed with Ionic Framework 1. Start by picking an API you’d like to use. For this example let’s use Google. THE POLYGLOT DEVELOPERABOUTBLOGCOURSESRESOURCESHIRE MESPONSOR The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the CONSUME RESTFUL API ENDPOINTS WITHIN A GOLANG APPLICATION I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API.However, I recently received questions on the subject of consuming data from other APIs from within a Goapplication.
FIND ALL TABLES IN AN ORACLE DATABASE BY COLUMN NAME Lucky for us, there is a convenient way to search for the tables you’re looking for based on column information. In your SQL tool of choice take the following command: select table_name from all_tab_columns where column_name = 'PICK_COLUMN'; If you’ve got DBA privileges, you can try this command instead: USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
PRINT DATA TO PAPER OR PDF USING IONIC FRAMEWORK Have you ever built an app that has heavy content that might need to one day be printed to a PDF or to paper? Maybe you’re building the next great email or news app, both of which have an expectation that you should be able to print what you’re reading. USING AN OAUTH 2.0 SERVICE WITH IONIC FRAMEWORK Basic instructions on using the InAppBrowser with Ionic Framework can be found in one of my earlier blog posts. If you’re looking to use Oauth in an Ionic 2 application, visit here, otherwise proceed with Ionic Framework 1. Start by picking an API you’d like to use. For this example let’s use Google. THE POLYGLOT DEVELOPER The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such HANDLING CORS IN A GOLANG WEB APPLICATION Cross-origin resource sharing can be a pain in the butt if you’re not careful. However, it is very easy to define what is and isn’t allowed in requests via the handlers package in your Golang web application. Just pay attention to where your requests are coming from (the origin), and the headers as well as the methods of the request. CONTINUOUS DEPLOYMENT OF WEB APPLICATION CONTAINERS WITH Continuous deployment (CD) is a very interesting subject. Being able to establish a build pipeline that deploys your application once building is complete is a fantastic form of automation. VALIDATE BRACKET AND PARENTHESIS COMBOS USING STACKS The recommended way would be to make use of the Stack data type. The idea is to add all opening brackets to a stack and pop them off the stack when closing brackets are found. If the closing bracket doesn’t match the top element (last pushed element) of the stack, then the string is invalid. The string is also invalid if it has beeniterated
AUTHENTICATE A GOLANG API WITH JSON WEB TOKENS This teach us how to create an API that offers an authentication mechanism outside of sessions and cookies, which typically are not available when working with an API. If you’re not familiar with JSON Web Tokens, the concept is simple. The client sends login credentials which are validated against a database. INSTALL A BETTER CUSTOM ROM ON THE AMAZON KINDLE FIRE Select the red plus (+) button to expand a selection of options, choosing Wipe. Select System data, 3rd party apps, and Dalvik cache if they are not already checked. Click the red plus (+) button again and choose Flash ZIP/OTA. Search for the Nexus ROM that you’ve downloaded and choose it. TEST PASSWORD STRENGTH WITH REGEX IN A REACT APPLICATION In this tutorial we’re going to make use of regular expressions to test the quality of a password. This is going to be done with simple JavaScript in a React application. To get an idea of what we want to accomplish, take a look at the animated image: In our example the background color will change as the password strength changes. USING AN OAUTH 2.0 SERVICE WITH IONIC FRAMEWORK Basic instructions on using the InAppBrowser with Ionic Framework can be found in one of my earlier blog posts. If you’re looking to use Oauth in an Ionic 2 application, visit here, otherwise proceed with Ionic Framework 1. Start by picking an API you’d like to use. For this example let’s use Google. RECORD IP CAMERA SURVEILLANCE VIDEO WITH A RASPBERRY PI In the above record.sh file there are a few differences from what we already saw. For one, notice the use of -nostate and -loglevel tags. This will mute the output of the recording process. Also note the use of the timestamp. Because this will happen on a CRON at 1 hour intervals, it is probably a good idea to include a timestamp in thefilename.
ADD TWO-FACTOR AUTHENTICATION TO A GOLANG RESTFUL API Add Two-Factor Authentication To A Golang RESTful API. When it comes to authenticating users for making use of your API, it is a good idea to add an extra step beyond standard username and password. This is called two-factor authentication (2FA) and it acts as a second layer of security for users making use of your application. THE POLYGLOT DEVELOPERABOUTBLOGCOURSESRESOURCESHIRE MESPONSOR The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the CONSUME RESTFUL API ENDPOINTS WITHIN A GOLANG APPLICATION I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API.However, I recently received questions on the subject of consuming data from other APIs from within a Goapplication.
FIND ALL TABLES IN AN ORACLE DATABASE BY COLUMN NAME Lucky for us, there is a convenient way to search for the tables you’re looking for based on column information. In your SQL tool of choice take the following command: select table_name from all_tab_columns where column_name = 'PICK_COLUMN'; If you’ve got DBA privileges, you can try this command instead: USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
PRINT DATA TO PAPER OR PDF USING IONIC FRAMEWORK Have you ever built an app that has heavy content that might need to one day be printed to a PDF or to paper? Maybe you’re building the next great email or news app, both of which have an expectation that you should be able to print what you’re reading. USING AN OAUTH 2.0 SERVICE WITH IONIC FRAMEWORK Basic instructions on using the InAppBrowser with Ionic Framework can be found in one of my earlier blog posts. If you’re looking to use Oauth in an Ionic 2 application, visit here, otherwise proceed with Ionic Framework 1. Start by picking an API you’d like to use. For this example let’s use Google. THE POLYGLOT DEVELOPERABOUTBLOGCOURSESRESOURCESHIRE MESPONSOR The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the CONSUME RESTFUL API ENDPOINTS WITHIN A GOLANG APPLICATION I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API.However, I recently received questions on the subject of consuming data from other APIs from within a Goapplication.
FIND ALL TABLES IN AN ORACLE DATABASE BY COLUMN NAME Lucky for us, there is a convenient way to search for the tables you’re looking for based on column information. In your SQL tool of choice take the following command: select table_name from all_tab_columns where column_name = 'PICK_COLUMN'; If you’ve got DBA privileges, you can try this command instead: USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
PRINT DATA TO PAPER OR PDF USING IONIC FRAMEWORK Have you ever built an app that has heavy content that might need to one day be printed to a PDF or to paper? Maybe you’re building the next great email or news app, both of which have an expectation that you should be able to print what you’re reading. USING AN OAUTH 2.0 SERVICE WITH IONIC FRAMEWORK Basic instructions on using the InAppBrowser with Ionic Framework can be found in one of my earlier blog posts. If you’re looking to use Oauth in an Ionic 2 application, visit here, otherwise proceed with Ionic Framework 1. Start by picking an API you’d like to use. For this example let’s use Google. THE POLYGLOT DEVELOPER The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such HANDLING CORS IN A GOLANG WEB APPLICATION Cross-origin resource sharing can be a pain in the butt if you’re not careful. However, it is very easy to define what is and isn’t allowed in requests via the handlers package in your Golang web application. Just pay attention to where your requests are coming from (the origin), and the headers as well as the methods of the request. CONTINUOUS DEPLOYMENT OF WEB APPLICATION CONTAINERS WITH Continuous deployment (CD) is a very interesting subject. Being able to establish a build pipeline that deploys your application once building is complete is a fantastic form of automation. VALIDATE BRACKET AND PARENTHESIS COMBOS USING STACKS The recommended way would be to make use of the Stack data type. The idea is to add all opening brackets to a stack and pop them off the stack when closing brackets are found. If the closing bracket doesn’t match the top element (last pushed element) of the stack, then the string is invalid. The string is also invalid if it has beeniterated
AUTHENTICATE A GOLANG API WITH JSON WEB TOKENS This teach us how to create an API that offers an authentication mechanism outside of sessions and cookies, which typically are not available when working with an API. If you’re not familiar with JSON Web Tokens, the concept is simple. The client sends login credentials which are validated against a database. INSTALL A BETTER CUSTOM ROM ON THE AMAZON KINDLE FIRE Select the red plus (+) button to expand a selection of options, choosing Wipe. Select System data, 3rd party apps, and Dalvik cache if they are not already checked. Click the red plus (+) button again and choose Flash ZIP/OTA. Search for the Nexus ROM that you’ve downloaded and choose it. TEST PASSWORD STRENGTH WITH REGEX IN A REACT APPLICATION In this tutorial we’re going to make use of regular expressions to test the quality of a password. This is going to be done with simple JavaScript in a React application. To get an idea of what we want to accomplish, take a look at the animated image: In our example the background color will change as the password strength changes. USING AN OAUTH 2.0 SERVICE WITH IONIC FRAMEWORK Basic instructions on using the InAppBrowser with Ionic Framework can be found in one of my earlier blog posts. If you’re looking to use Oauth in an Ionic 2 application, visit here, otherwise proceed with Ionic Framework 1. Start by picking an API you’d like to use. For this example let’s use Google. RECORD IP CAMERA SURVEILLANCE VIDEO WITH A RASPBERRY PI In the above record.sh file there are a few differences from what we already saw. For one, notice the use of -nostate and -loglevel tags. This will mute the output of the recording process. Also note the use of the timestamp. Because this will happen on a CRON at 1 hour intervals, it is probably a good idea to include a timestamp in thefilename.
ADD TWO-FACTOR AUTHENTICATION TO A GOLANG RESTFUL API Add Two-Factor Authentication To A Golang RESTful API. When it comes to authenticating users for making use of your API, it is a good idea to add an extra step beyond standard username and password. This is called two-factor authentication (2FA) and it acts as a second layer of security for users making use of your application. SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
SWITCH BETWEEN SCENES IN A PHASER GAMESEE MORE ON THEPOLYGLOTDEVELOPER.COM GETTING STARTED WITH CAPACITOR USING REACTCAPACITOR MOBILE FRAMEWORKCAPACITOR WEBIONIC CAPACITOR BUILD ANDROIDCAPACITOR APPCAPACITOR FRAMEWORKCAPACITOR PLUGIN In the Terminal, execute: create-react-app react-capacitor-example. If all was good, you will see a message about the successfully installed project. Next we need to open your newly created project and try to run it in the development mode: cd react-capacitor-example npm installnpm run start.
SCAN FOR BROKEN LINKS ON A WEBSITE WITH JAVASCRIPT Building a website isn’t a difficult task in a lot of circumstances, but maintaining a website is a totally different story. When it comes to larger scale websites or blogs such as The Polyglot Developer, content can become out of date at any time, and it’s more likely to happen the longer the content appears on the site.. Stale content and content that doesn’t work, whether that be SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the PRINT DATA TO PAPER OR PDF USING IONIC FRAMEWORK Have you ever built an app that has heavy content that might need to one day be printed to a PDF or to paper? Maybe you’re building the next great email or news app, both of which have an expectation that you should be able to print what you’re reading. MOVING TO DART FROM C++ A couple of days ago, while recovering from some flu, I managed to catch up a bit of me reading. If you know anything about the life of an independent contractor, you’d know that there’s never time for your personal projects or hobbies, so this was a most welcome break. INCLUDING ATTRACTIVE CHARTS IN YOUR ANGULAR WEB APPLICATION From the CLI, execute the following: ng new chart-project. The above command will create a new Angular with TypeScript project. The next step is to install the Chart.js dependency to be used in our project. After navigating into our project, execute the following USE CHART.JS TO DISPLAY ATTRACTIVE CHARTS IN A VUE.JS WEBSEE MORE ON THEPOLYGLOTDEVELOPER.COMVUE CHART LIBRARYVUE ECHARTS EXAMPLEVUE GANTT CHARTVUE GRAPHSVUE LINE CHARTVUE STOCK CHARTS SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
SWITCH BETWEEN SCENES IN A PHASER GAMESEE MORE ON THEPOLYGLOTDEVELOPER.COM GETTING STARTED WITH CAPACITOR USING REACTCAPACITOR MOBILE FRAMEWORKCAPACITOR WEBIONIC CAPACITOR BUILD ANDROIDCAPACITOR APPCAPACITOR FRAMEWORKCAPACITOR PLUGIN In the Terminal, execute: create-react-app react-capacitor-example. If all was good, you will see a message about the successfully installed project. Next we need to open your newly created project and try to run it in the development mode: cd react-capacitor-example npm installnpm run start.
SCAN FOR BROKEN LINKS ON A WEBSITE WITH JAVASCRIPT Building a website isn’t a difficult task in a lot of circumstances, but maintaining a website is a totally different story. When it comes to larger scale websites or blogs such as The Polyglot Developer, content can become out of date at any time, and it’s more likely to happen the longer the content appears on the site.. Stale content and content that doesn’t work, whether that be SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the PRINT DATA TO PAPER OR PDF USING IONIC FRAMEWORK Have you ever built an app that has heavy content that might need to one day be printed to a PDF or to paper? Maybe you’re building the next great email or news app, both of which have an expectation that you should be able to print what you’re reading. MOVING TO DART FROM C++ A couple of days ago, while recovering from some flu, I managed to catch up a bit of me reading. If you know anything about the life of an independent contractor, you’d know that there’s never time for your personal projects or hobbies, so this was a most welcome break. INCLUDING ATTRACTIVE CHARTS IN YOUR ANGULAR WEB APPLICATION From the CLI, execute the following: ng new chart-project. The above command will create a new Angular with TypeScript project. The next step is to install the Chart.js dependency to be used in our project. After navigating into our project, execute the following USE CHART.JS TO DISPLAY ATTRACTIVE CHARTS IN A VUE.JS WEBSEE MORE ON THEPOLYGLOTDEVELOPER.COMVUE CHART LIBRARYVUE ECHARTS EXAMPLEVUE GANTT CHARTVUE GRAPHSVUE LINE CHARTVUE STOCK CHARTS BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
SCAN FOR BROKEN LINKS ON A WEBSITE WITH JAVASCRIPT Building a website isn’t a difficult task in a lot of circumstances, but maintaining a website is a totally different story. When it comes to larger scale websites or blogs such as The Polyglot Developer, content can become out of date at any time, and it’s more likely to happen the longer the content appears on the site.. Stale content and content that doesn’t work, whether that be ADD MUSIC, SOUNDS, AND OTHER AUDIO TO A PHASER GAME The above markup contains more than just Phaser 3.x boilerplate code. The above code is responsible for creating three sprites with arcade physics, one of which is an animated spritesheet.. If you’d like to use the game assets that I’m using, download the plane, coin, and the obstacle image files.. When the plane collides with either of the two other sprites, an event happens. SIMPLE USER LOGIN IN A VUE.JS WEB APPLICATION Create a New Vue.js Web Application. To make our lives easier, we’re going to use the Vue CLI to create a new project. It is not absolutely necessary to use the Vue CLI, but I totally recommend it. With the CLI installed and configured, execute the following command: vue create simple-login-project. When prompted, choose to specify the USE CHART.JS TO DISPLAY ATTRACTIVE CHARTS IN A VUE.JS WEB From the CLI, execute the following to install the Chart.js package: npm install chart.js --save. To focus on charting and not introduce complexity behind requesting remote data, we’re going to mock all our chart data. This means that we won’t need any furtherdependencies to
HANDLING CORS IN A GOLANG WEB APPLICATION Cross-origin resource sharing can be a pain in the butt if you’re not careful. However, it is very easy to define what is and isn’t allowed in requests via the handlers package in your Golang web application. Just pay attention to where your requests are coming from (the origin), and the headers as well as the methods of the request. GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
MONITORING GPS DATA WITH THE NEO 6M AND ARDUINO I recently wrote a tutorial titled, Configuring Visual Studio Code for Arduino Development, because I’ve been exploring the Internet of Things (IoT).Up until recently I’ve only had hands on experience with Raspberry Pi, but I’ve been expanding my knowledge with Arduino.. I have an Arduino Uno and a GPS module, so I thought it’d be a good idea to demonstrate how to use the two together. GETTING STARTED WITH MONGODB AS A DOCKER CONTAINER DEPLOYMENT Instead, what we could do is the following: docker run -d -p 27017-27019:27017-27019 --name mongodb mongo:4.0.4. The above command will run the container in detached mode, or in the background for us. We are also mapping the container ports with host ports so that way we can access the database from a host level application if we wanted to. MANAGE CROSS-ORIGIN RESOURCE SHARING IN A NODE WITH HAPI The above command will create a package.json file wherever the command line path is pointing. The next step is to download any projectdependencies.
SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: CONFIGURING VISUAL STUDIO CODE FOR ARDUINO DEVELOPMENT From the Command Palette, type Arduino and choose Change Baud Rate. You’ll want the baud rate in Visual Studio Code to match the baud rate in your code. It doesn’t need to be 9600, it just needs to match. Chances are your computer will have numerous serial ports thatare accessible.
BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
CONTINUOUS DEPLOYMENT OF WEB APPLICATION CONTAINERS WITHSEE MORE ON THEPOLYGLOTDEVELOPER.COMJENKINS BUILD AND DEPLOY FIND ALL TABLES IN AN ORACLE DATABASE BY COLUMN NAME Lucky for us, there is a convenient way to search for the tables you’re looking for based on column information. In your SQL tool of choice take the following command: select table_name from all_tab_columns where column_name = 'PICK_COLUMN'; If you’ve got DBA privileges, you can try this command instead: CONSUME RESTFUL API ENDPOINTS WITHIN A GOLANG APPLICATION I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API.However, I recently received questions on the subject of consuming data from other APIs from within a Goapplication.
USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
USING NW.JS TO CONVERT A WEBSITE INTO A DESKTOP APPLICATIONSEE MORE ON THEPOLYGLOTDEVELOPER.COMGET URL JSJS URL PARAMSJS URL PARSEJS URL PATHJS URL QUERYJS URL VALIDATION USE REGEX TO TEST PASSWORD STRENGTH IN JAVASCRIPT The above code has an input box and a rectangular div tag. There is, however, a few pieces of AngularJS code that we’ll see in a moment. The passwordStrength variable that you see in the ng-style tag holds all the styling information for the strength rectangle. The style information we’re going to use is SCALE, CROP, AND ZOOM IMAGES IN A REACT WEB APPLICATION From the command line, execute the following: npx create-react-app image-crop-example. The above command will create a new project with the default template. The default template contains a little more code than we need, so let’s take a moment to clean it up. Open the project’s src/App.js file and make it look like the following: CONFIGURING VISUAL STUDIO CODE FOR ARDUINO DEVELOPMENT From the Command Palette, type Arduino and choose Change Baud Rate. You’ll want the baud rate in Visual Studio Code to match the baud rate in your code. It doesn’t need to be 9600, it just needs to match. Chances are your computer will have numerous serial ports thatare accessible.
BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
CONTINUOUS DEPLOYMENT OF WEB APPLICATION CONTAINERS WITHSEE MORE ON THEPOLYGLOTDEVELOPER.COMJENKINS BUILD AND DEPLOY FIND ALL TABLES IN AN ORACLE DATABASE BY COLUMN NAME Lucky for us, there is a convenient way to search for the tables you’re looking for based on column information. In your SQL tool of choice take the following command: select table_name from all_tab_columns where column_name = 'PICK_COLUMN'; If you’ve got DBA privileges, you can try this command instead: CONSUME RESTFUL API ENDPOINTS WITHIN A GOLANG APPLICATION I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API.However, I recently received questions on the subject of consuming data from other APIs from within a Goapplication.
USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
GET THE MOST RECENT RECORD IN A TABLE BY DATE AND USER The above SQL query will return the most recent access record for the nraboy user. Now why can’t you just do the following: select * from tbl_access_logs tal1 where tal1.username = 'nraboy' and tal1.activity_date = max(tal1.activity_date); This will translate to where tal1.username = ‘nraboy’ and tal1.activity_date = 2014-07-26which will
USING NW.JS TO CONVERT A WEBSITE INTO A DESKTOP APPLICATIONSEE MORE ON THEPOLYGLOTDEVELOPER.COMGET URL JSJS URL PARAMSJS URL PARSEJS URL PATHJS URL QUERYJS URL VALIDATION USE REGEX TO TEST PASSWORD STRENGTH IN JAVASCRIPT The above code has an input box and a rectangular div tag. There is, however, a few pieces of AngularJS code that we’ll see in a moment. The passwordStrength variable that you see in the ng-style tag holds all the styling information for the strength rectangle. The style information we’re going to use is THE POLYGLOT DEVELOPER The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such BLOCK ADS AT A NETWORK LEVEL WITH PI-HOLE AND AN UBIQUITI Conclusion. You just saw how to configure a Pi-Hole on your network using a Raspberry Pi and an Ubiquiti EdgeRouter. The Pi-Hole will block advertisements and other potentially malicious addresses from your network by dropping DNS lookups that appear on the block-list that’s part of the Pi-Hole. Instead of using the DNS that your ISPor
PARSE AN XML RESPONSE WITH PHP If you’re like me, you find XML a real pain to deal with, but yet it still seems to exist with various web services. If you’re using Android or AngularJS, these frameworks can’t process XML out of the box, but they can JSON.. With the assistance of a PHP powered web server, you can easily transform the nasty XML responses you get into something more usable like JSON. USE A RASPBERRY PI AND A CPU MINER TO MINE ALTCOINS I’m a big fan, and hoarder, of Raspberry Pi devices. If you’ve seen my previous Raspberry Pi tutorials, you’ll know I like using them for hardware and software projects.These microcomputers use very little energy and have decent processors and memory, making them greatfor
FORCE HTTPS ON ALL PAGES OF YOUR WORDPRESS SITE Force SSL for administrator and sign in pages. Secure all non-administrator pages with HTTPS. Fix .htaccess to process website assets such as CSS and JavaScript under HTTPS. Clean up any loose ends such as caching. When all this has been completed you should have a WordPress website or blog that takes full advantage of HTTPS. GETTING STARTED WITH CAPACITOR USING REACT In the Terminal, execute: create-react-app react-capacitor-example. If all was good, you will see a message about the successfully installed project. Next we need to open your newly created project and try to run it in the development mode: cd react-capacitor-example npm installnpm run start.
USING NW.JS TO CONVERT A WEBSITE INTO A DESKTOP APPLICATION A while ago, I ran into a situation where I needed to make web application into a desktop application for a corporate client. The idea was to leverage as much of the existing app as possible, while still meeting the requirement of having a “desktop” application. BYPASS CORS ERRORS WHEN TESTING APIS LOCALLY Make configuration changes to your web browser or run a local server to bypass CORS and other cross origin problems when testing APIslocally.
USE CHART.JS TO DISPLAY ATTRACTIVE CHARTS IN A VUE.JS WEB From the CLI, execute the following to install the Chart.js package: npm install chart.js --save. To focus on charting and not introduce complexity behind requesting remote data, we’re going to mock all our chart data. This means that we won’t need any furtherdependencies to
MAKE HTTP REQUESTS IN IOS WITH REACT NATIVE If you’ve been keeping up with my blog, you’ll know I did an article for doing HTTP requests with Ionic Framework.Since I’ve been playing around with React Native a lot lately, I figured it is probably a good idea to figure out how to do RESTful HTTP requests sooner than later since everything has an API back-end now.. The Facebook documentation for React Native has (or had at the timeToggle navigation
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BE A POLYGLOT DEVELOPER Welcome to The Polyglot Developer, your one stop shop to learning about web, mobile, and game development! To get the most out of this resource, we recommend you sign up to the newsletter for monthly tips and tricks as well as a digest of all the tutorials that were published for the previous month. In case you’re unfamiliar with what a polyglot is, it is a person who knows and is able to use several different languages. Application development changes a lot every year and it is up for the developer to keep up with all the new languages and frameworks that are created. Most developers are polyglots because it is generally not enough to know just one development technology. The goal of The Polyglot Developer is to keep you on your feet with all the latest and greatest development technologies, offering you a variety of resources that make learning not only easy, but fun aswell.
ABOUT THE POLYGLOT DEVELOPER The Polyglot Developer was founded in 2014 by Nic Raboy as a way for developers to enhance their education on various programming technologies and methodologies. Starting as a blog, The Polyglot Developer has evolved into other categories of learning such as podcasts, YouTube videos, and onlinecourses.
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