移除旧版浏览器支持：不再支持 IE 11 以下版本（即仅支持 IE11+），同时也放弃了对 Edge Legacy、iOS <11、Firefox <65 和旧版 Android 浏览器的支持。

With jQuery 4, a new major version is released for the first time in years. Less legacy, modern browsers, more security – with manageable breaking changes.

JavaScript and jQuery: interactive front-end web development • By John Duckett • Wiley • 640 pages • ISBN: 978-1-118-53164-8 • £26.99/€32/$39.99 The problem with learning programming is that it's an ...

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jQuery is an open-sourced JavaScript library that simplifies creation and navigation of web applications. Specifically, jQuery simplifies HTML Document Object Model (DOM) manipulation, Asynchronous ...