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What is JQuery?

JQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. It is free, open-source software using the permissive MIT License. As of May 2019, jQuery is used by 73% of the 10 million most popular websites.

What is difference between JavaScript and jQuery?

The main difference among the three is that JavaScript is client-side, i.e., in the browser scripting language, whereas jQuery is a library (or framework) built with JavaScript. ... At the same time, jQuery is a JavaScript framework that makes life easier for people who want to program for the browser

why it is useful in modern web designing?

jQuery is one of the widely used javascript library among all other libraries holding the following core features:

  • DOM elements selection
  • Traversal and manipulation which is enabled by Sizzle(the selector engine)
  • Creating a new programming style.
  • Fusing DOM data structures and algorithms