The purpose of jQuery design is "write less and do more", and advocate writing less code and doing more. Therefore, using jQuery in website design can write less code and realize more functions. Moreover, it encapsulates the common function codes of JavaScript, provides a simple JavaScript design pattern, and optimizes HTML document operation, event handling, animation design and Ajax interaction.
Extended data
Language features of jQuery:
1, get document elements quickly.
The selection mechanism of jQuery is based on the selector of Css, which provides the ability to quickly query elements in DOM documents and greatly strengthens the way to obtain page elements in JavaScript.
2. Provide beautiful page dynamic effects
JQuery has built-in a series of animation effects, which can develop very beautiful web pages. Many websites use jQuery's built-in effects, such as dynamic special effects such as fading in and out and removing elements.
3. Create AJAX non-refresh pages
AJAX is the abbreviation of asynchronous JavaScript and XML, which can develop very sensitive and non-refreshing web pages, especially when developing server-side web pages, such as PHP websites, which need to communicate with the server back and forth. If you don't use AJAX, you have to refresh the web page every time you update the data, but after using AJAX special effects, you can partially refresh the page and provide dynamic effects.
References:
Baidu encyclopedia -jQuery