What is JavaScript?
- JavaScript is dynamic programming language that's used for web development, in web applications, for game development, and lots more. It allows you to implement dynamic features on web pages that cannot be done with only HTML and CSS.
Why do we need JavaScript?
- Whether you plan to specialize in front-end, back-end, or full-stack development, JavaScript is a crucial programming language for any web developer. Without JavaScript, we wouldn’t have the dynamic and interactive web pages that have become the standard user experience we all know, love, and rely on.
JavaScript Fundamentals
Variables
Constants
Data Types
Objects
Arrays
Functions
Conditional Statements
Loops
Switch Case
JavaScript Data Types
Primitive Data Type
Number
String
Boolean
Undefined
Null
Non-Primitive Data Type
Object
Array
Function
Benefits of JavaScript
It's easy to learn and simple to implement
Multi-functional website development
Rich set of frameworks
Builds interactive websites
JavaScript is an interpreted language
JavaScript is platform independent
Support for multiple tasks running
JavaScript is in the list of three main things of WWW with HTML and CSS
It's all about being fast
Top JavaScript Libraries & Frameworks
Libraries
jQuery
React
Redux
D3.js
Frameworks
Bootstrap
Angular
NodeJS
Vue.JS
Ember.JS
Is JavaScript used for Front-end or Back-end?
JavaScript is a client-side language, which technically makes it a front-end language. But with the Node.js framework, JavaScript can also be used in backend. Using JavaScript across the whole stack, for both front-end and back-end, is an excellent practice because it creates a cohesive application.