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This article mainly explains "jquery how to judge the current element is a few elements", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's train of thought slowly in depth, together to study and learn "jquery how to judge the current element is a few elements" it!

In jquery, you can use the index () method to determine which element the current element is, which returns the index position of the specified element relative to other specified elements; the syntax "$(selector). Index ()".

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

In jquery, you can use the index () method to determine which element the current element is.

The index () method returns the index position of the specified element relative to other specified elements. Notice that the index serial number starts at 0.

Syntax:

(selector) .index ()

Example:

First li, second li, third li $(document) .ready (function () {$("li") .click (function () {alert ($(this). Index () );})

The above jQuery code, because the index sequence number starts at 0, it will prompt "0" if the first one is clicked, and "1" if it is the second li tag.

Thank you for your reading, the above is the content of "jquery how to judge the current element is the first element", after the study of this article, I believe you have a deeper understanding of how jquery judges the current element is the number of elements, the specific use of the situation also needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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