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This article mainly introduces the relevant knowledge of "how to achieve JQuery event delegation". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to achieve JQuery event delegation" can help you solve the problem.

Jq wrote the click event, which executes the corresponding method after getting the element's class name clicked, but after developing a set of templates, he will empty all the structures first, so that jq can't find the element at all, so the event cannot be executed.

To put it formally: JS is loaded asynchronously, JQ events are not executed to solve the problem (Baidu title, hah)

Dynamically added element nodes in jquery cannot trigger event problems (ibid.)

Solution:

It is worth noting that this method is not valid. Maybe the version of jq I used is too high, more than 1.9, and this method is no longer supported.

The second method:

But the downside is that when multiple event delegation mechanisms are added to an element, he dies.

("div") .delegate ("button", "click", function () {console.log ("start")})

When the button under div is clicked, print the start. The button can be generated dynamically.

King's method: on

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