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Promises in AngularJS. Part II. $q service.

I have already blogged about Promises in AngularJS 1.x. This is the second part which describes the Angular’s $q service. The $q service can be used in two different ways. The first way mimics the Q library for creating and composing asynchronous promises in JavaScript. The second way mimics the ECMAScript 2015 (ES6) style. Let’s begin with the first way. ...

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Understanding the Docker Ecosystem

Attend any tech-related event or read any tech-related article over the past 18 months, and you will likely have heard of Docker and have an inkling of what it is and does. In short, Docker builds upon concepts of the past but packages them better. Docker is a tool for creating ‘containers’ that can hold just what you need for ...

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Gamify your learning goals

Learning a new programming language or framework is hard work, even if you love doing it. You can’t get around this: to complete a course or a side project, you have to put your head down and do the work to reach the finish line. How do you motivate yourself when there are so many interesting skills and projects catching ...

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Javascript Textarea Example

If you have applied somewhere online, or asked for a particular thing using the contact forms of the websites, you will most probably have seen those use a text-area field for the argumentation. It is a highly convenient feature of Javascript, and if you now want to add it to your own website, I would completely agree. But how can ...

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A Deep Dive into Ruby Scopes

The Ruby language was designed with a pure object-oriented approach. In Ruby, everything is an object. Object-oriented design provides encapsulation for properties and actions. Encapsulation’s purpose is to protect methods and data from outside interference and misuse. With encapsulation, everything has certain scopes from which they may be utilized. Several categories of scope in Ruby are global, instance, and local ...

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7 Video Courses to Level Up your Web Dev Skills

Keeping up with technical knowledge as a web developer can be tricky. New technologies seem to be popping up every day, and the fundamental ones also see a wave of re-iterations adding new features and capabilities. What’s a web developer supposed to do? Here is where online education platforms come into play. They can be very useful in getting you ...

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Writing unit tests for Sails.js app using mocha

Sails.js is a wonderful node.js framework. Writing unit tests for Sails.js using mocha is pretty easy. On the before method of a mocha test you have to lift the sails application and on the after function you have to lower it. var Sails = require('sails'); describe('SailsMochaTest',function() { before(function(done) { this.timeout(50000); Sails.lift({}, function(err,server) { if(err) { done(err); } else { done(err,sails); ...

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Python Class Example

In this tutorial, we’ll talk about classes. By using Python 3.4, we will talk about what classes are, how do we use them and what can we do with them. Python is an object-oriented programming language, and as such it has a class mechanism. Classes are extensible templates for creating objects, providing initial values for state (variables) and implementation of ...

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