JavaScript Introduction

JavaScript

JavaScript is a programming language. It is also called DHTML(Dynamic Hyper Text Markup Language). It is a client side and server side programming language.

It is a Object Base Programming language. It is a scripting type programming language. JavaScript is a Interpreted programming language.

JavaScript is a platform Independent programming language. All web developers must learn it.

JavaScript is the bunch of html, css, and JavaScript.

Use of JavaScript

It can store useful data in a variable. It can do operations on pieces of text like string. It is used for events. It means your running code can give response when event occurred.

JavaScript is useful for Browsers API(Application Programming Interface): (1.) The DOM (Document Object Model) API allows you to manipulate HTML and CSS.

(2.) The Geolocation API retrieves geographical information. Example Google Map is able to find your location on map. (3.) The Canvas and WebGL APIs allow you to create animated 2D and 3D graphics.

(4.) Audio and Video APIs like HTMLMediaElement and WebRTC allow you to do really interesting things with multimedia, such as play audio and video right in a web page.Grab video from your web camera and display it on someone else's computer.

JavaScript is used to get, set or change data of web page at run time. JavaScript is used for client side validation.

History of JavaScript

Inventor of javaScript is "Brendan Eich".

He was invented javaScript in 1995.

The huge companies that dominate the technical landscape have repeatedly tried to supplant JavaScript. First Sun, then Microsoft, then Adobe ,then Google. and yet JavaScript is thrive.