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jQuery is a fast, concise JavaScript framework. The purpose of the design is "write less, do more", which means writing less code and doing more things. 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 can be summarized as follows: It has a unique chain syntax and a short and clear multi-functional interface; it has an efficient and flexible CSS selector, and can extend the CSS selector; it has a convenient plug-in extension mechanism and rich plug-ins. Compatible with various mainstream browsers, such as IE 6.0+, FF 1.5+, Safari 2.0+, Opera 9.0+, etc., it is one of the most popular front-end development frameworks in the world. Based on the latest version, PHP Chinese website exclusively records the latest jQuery video tutorials to give back to new and old users of PHP Chinese website.