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Over the years, I have seen several JavaScript techniques that are particularly clever. Here’s a short list of 5 such techniques that I have been using again and again. I hope it inspires you too to rethink how you write certain piece of code. And, please note that some people may think clever coding impacts readability and they might be ...

Earlier, I talked about the basics of JavaScript Closure. In this post, lets continue to explore Closure with the help of some practical examples. Before we begin, just to recap, Closure encloses function and the set of variables that were in scope of the function when it was declared. The variables inside the closure kept alive as long as the ...

Closures are very important topic in JavaScript that you must understand if you want to master the language. The earlier you know about Closures, the better you will write your JavaScript code. But, from my experience, most of the JavaScript beginners either do not understand Closure or do not know that the existence of the topic at all. So, in ...

The aim of this guide is to get people getting started with Node.js and npm, while also showing some of the handy commands I use to bootstrap my projects.           Create your project directory. Change to the directory you just created. Tell git to make a repo. Pull down a preconfigured .gitignore file for node projects ...

I’ve been playing around with Vert.x for a couple of weeks and I’m really starting to like the simplicity of the framework. With very little configuration you can quickly get impressive results. In this article I’m diving a bit deeper in how to set up browser to browser communication using the Vert.x eventbus by using the javascript client side API. ...

              Contents 1. Set up the infrastructure 1.1. Install Node.js 1.2. Install gulp 1.2.1. Install gulp globally 1.2.2. Install gulp in your project devDependencies: 1.2.3. Create a gulpfile.js at the root of the project: 1.2.4. Run gulp 1.3. Install Gulp plugins 2. gulpfile.js 2.1. Load the modules 2.2. Gulp tasks 2.3. Pipes 2.4. “Watching” ...

When it comes to web programming, I’ve always coded in ASP.NET or the LAMP technologies for most part of my life. Now, the new buzz in the city is node.js. It is a light-weight platform that runs javascript code on server-side and is said to improve performance by using async I/O. The theory suggests that synchronous or blocking model of ...

When you’re running end-to-end tests, chances are that sometimes you need to set up the system before running the actual test code. It can involve cleaning up after previous executions, going through some data setup “wizard” or just calling the raw server API directly. Here’s how you can do it with Protractor. Protractor is a slick piece of technology that ...

In JavaScript, when you define an object, you can attach it’s functions in two different ways. Inside object’s constructor function, using this.func = function(){...} Using prototype. i.e. Obj.prototype.func = function() {...}. In both approaches, the function func() will be accessible to all the instances of your object. But which one is the best way to use? In short: Use prototype ...