What is JQuery?

Last updated 5 years, 2 months ago | 1612 views 75     5

Tags:- JQuery


jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript.


now a day many of the biggest companies on the Web use jQuery, such as:


DOM Traversal and Manipulation

Let's get a button and change it's HTML to "Continue"

 $( "button" ).html( "Continue" )


Event Handling

 Let's show a image "#banner" which is hidden with display:none in its CSS when a button "#show" is clicked.

$( "#show" ).onclick(function() {



let's move a div having css property "background:red;height:100px;width:100px;position:absolute;" to 500px left on a button click.

    $("div").animate({left: '500px'});



Save some data to the server and notify the user once it's complete.

  method: "POST",
  url: "demo.php",
  data: { name: "Roshan", location: "Ranchi" }
  .done(function( msg ) {
    alert( "Data Saved: " + msg );