What is the difference between jquery 2.x and 1.x

The difference between jquery 2.x and 1.x: 1. [jQuery 2.x] does not support IE6, IE7 and IE8, but [jQuery 1.x] does; 2. Compared with [jQuery 1. x], [jQuery 2.x] The core has changed.

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The difference between jquery 2.x and 1.x Yes:

jQuery is a concise and fast JavaScript library that can be used to simplify event handling, HTML document traversal, Ajax interaction and animation for rapid website development. jQuery simplifies client-side scripting of HTML, thereby simplifying the development of Web 2.0 applications.

Since its birth in 2006, jQuery has released three major versions: 1.x, 2.x, and 3.x, and these three major versions have been subdivided into many smaller versions.

What is the difference between 2.x and 1.x versions in jquery?

1. Therefore, for general projects, you can use version 1.X. The final version: 1.12.4 (May 20, 2016)

2. Few people use it. The official only does bug maintenance and no new functions will be added. If you do not consider compatibility with lower version browsers, you can use 2.x. Final version: 2.2.4 (May 20, 2016)

Difference:

1 , jQuery 2.x does not support IE6, IE7 and IE8, but jQuery 1.x does;

2. Compared with jQuery 1.x, the jQuery 2.x kernel has changed

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