what is javascript jquery

What is jQuery? jQuery is a reusable JavaScript library written in javascript, which can also be said to be a framework for JavaScript. Let’s learn jquery in detail.

jQuery is a fast and concise JavaScript framework, and it is another excellent JavaScript code library after Prototype.

It encapsulates common JavaScript function codes, provides a simple JavaScript design pattern, and optimizes HTML document operations, event processing, animation design and Ajax interaction.

The core features of jQuery:

has a unique chain syntax and a short and clear multi-functional interface;

has an efficient and flexible css selector , and can extend the CSS selector;

has a convenient plug-in extension mechanism and rich plug-ins.

So what can jquery be used for?

1. jquery can be used to obtain page elements

2. jquery can be used to modify the page appearance

3. jquery can be used to change the large content of the page

4. jquery can be used to respond to user page operations

5. jquery can be used to add dynamic effects to the page

6. jquery can be used to complete the page without dynamic refresh. You can get information from the server

7. jquery can be used to simplify common javaScript tasks

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