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Kudos for your site – powered by Firebase

I don’t quite remember, guess it was about more than a year ago when I came across a Svbtle-hosted blog where I noticed a small little circle, bouncing when you hover it and showing a number followed by “Kudos”. What are Kudos? Read ahead and see how I created my own version using Firebase as the backend storage. Note, if ...

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CORS and how to enable it in Apache Web Server

Since some time ago, more and more techniques have been applied in Web Development to obtain information from the server in client side, avoiding the need to reload the page or moving into another to see a last minute update or the result of a form submitting. AJAX is a group of interrelated Web development techniques used on the client-side ...

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JavaScript Try Catch Exception Example

EDITORIAL NOTE: In this post, we feature a comprehensive JavaScript Try Catch Exception Example. The try statement lets you test a block of code for errors. The catch statement lets you handle the error. An important issue to solve, for those of you who use JavaScript as their programming language of choice, is handling errors. They are inevitable and unpredictable ...

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AngularJS UI-Router – Components

This is the second post of a series of 3, presenting AngularJS UI-Router library: Part 1: Introduction Part 2: Components AngularJS UI-Router – Example         Components As stated in the introduction to this routing library, the AngularJS UI-Router is built around states which allow us to have states bound to URLs like ngRoute module, but also leave us ...

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Using AngularJS to Extend Your Code Quality

The AngularJS API provides a function named extend that can help improve your code quality and efficiency. I always look for ways to improve quality, increase efficiency, reduce risk and eliminate ritual and ceremony when I am developing software. Perhaps the simplest way to express this is the DRY principle (Don’t Repeat Yourself). I prefer a refactoring-driven approach to this ...

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Configuring Load Balancer with HAProxy and Node.js

Load Balancing is needed in order to distribute the load of work across multiple resources – in computer science terminology, these multiple resources can be pieces of software or hardware, where similar work processes are waiting to be executed for a processing request. So, in a web application, we will need to perform load balancing to control the user requests ...

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Node.js Meets .NET – Edge.js

With so much JavaScript development on the client side, it only makes sense that developers and organizations would want to develop server side applications using JavaScript as well.  Node.js has become a popular choice for building server side applications using JavaScript because of its asynchronous event-driven model and many libraries and extensions that are available. But sometimes JavaScript is not ...

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AngularJS Tip: Using a Filter with ngClass

I was working on my presentation of building an AngularJS app for the upcoming Atlanta Code Camp and ran into an interesting scenario. The app tracks various variables and formulas and then displays them in a responsive fashion. I’ll post the deck and code after the camp. One formula is Body Mass Index, an indication of general weight and health. ...

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Simple JavaScript OOP for C++, Java and C# Developers

Introduction Most developers are familiar with object-oriented programming and design in languages like Java, C++ and C#. JavaScript, however, does not provide any obvious means to support this kind of object-oriented development. The result is that structured code becomes very hard to write for developers new to the world of JavaScript. If you have written a few programs in JavaScript ...

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