Getting Started With Node.js
Created by a Joyent software engineer Ryan Dahl in 2009, Node.js is an open-source and cross-platform runtime environment for creating almost any kind of project. Before the creation of Node,…
January 2021
What is REST?
REST stands for REpresentational State Transfer. REST is a system that allows users to request information from a server via an API and then receive appropriate responses in different data…
Javascript: Class Inheritance
Inheritance is an important concept in Object Oriented Programming. Inheritance is the process whereby one class, also called the sub-class, acquires the properties and methods of another class, also known…
Javascript: Object Oriented Programming
Object Oriented Programming (OOP) is a way of writing code such that you can create different objects (also called “instances”) from a common blueprint. Each created instance has properties that…
Javascript: Working With Classes
Introduced in ES6 as a major update to the Object Oriented Programming concept in Javascript, Classes are templates for creating objects. Classes can also referred to as the “syntactic sugar”…
Null, Undefined and “Not defined” in Javascript
In JavaScript, null, undefined, and not defined are three distinct concepts that refer to different values or states. In this article we shall look at null, undefined and not defined…
Callbacks, Promises and Async Await
Callback functions, Promises, and Async Await are concepts fundamentally used by JavaScript to handle deferred operations. Sometimes an operation could be synchronous (blocking) or asynchronous (non-blocking). Let us take a…
React Native: ActivityIndicator
In React Native, an ActivityIndicator displays a loading circular mark which signals to the user that a task is being performed or a network request is being made. Using ActivityIndicators…
React Native: Make a POST Request Using Fetch
What is a POST Request? The POST request is part of the Http methods which is used as a request protocol between a client and a server. A POST method…
React Lifecycle Methods: ComponentDidMount
The componentDidMount() lifecycle method is called immediately after a component is mounted or, in simple terms, when that particular component or page is in use or in focus or in…
React Native: How to add Background Image
As a software developer, there are times when you may need to set background image for your application based on the app requirements, React Native allows you to set background…
Getting Started With React Native: Create a Class Component
The React Library allows you to define components either as classes or functions. These components allow you to split your UI into independent, reusable pieces, and help you think about…