What is Jquery

jQuery is a cross-browser JavaScript library designed to simplify the client-side scripting of HTML

Is There Any Differnce Between $(document).ready(function() and $(function()

Both represent the same.
$(function() is shorthand representation of $(document).ready(function()

What is the Diference Difference Between Document.ready and Window.onload

The main difference is that document.ready() event gets called as soon as your DOM is loaded. It does not wait for the contents to get loaded fully, while window.onload will wait until all your contents are loaded fully

We can have more than one document.ready() function in a page where we can have only one onload function.

What Are the Features of Jquery

JQuery features are as follows -

• jQuery is free, open source software.
• jQuery’s syntax is designed to make it easier to navigate a document, select DOM elements, create animations, handle events, and develop Ajax applications
• Extensibility through plug-ins
• Cross-browser support

What Does $ Represent in Jquery

Dollar Sign is nothing but it’s an alias for JQuery, You can either write JQuery or $