How to change the background color of article paragraphs through the jquery toggleClass() attribute-JS Tutorial-php.cn

How to change the background color of article paragraphs through the jquery toggleClass() attribute

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Release： 2018-07-04 11:48:00

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This article mainly introduces the method of changing the background color of article paragraphs through the jquery toggleClass() attribute. It has a certain reference value. Now I share it with you. Friends in need can refer to it

jQuery Make an article paragraph to change the background color attribute jquery toggleClass() attribute. The article attaches example code and source code for everyone. Interested friends can refer to it

Definition and usage

toggleClass() method adds and Removes one or more classes from selected elements to toggle.

This method checks the specified class in each element. Adds the class if it does not exist, or removes it if it is set. This is called a toggle effect.

However, by using the "switch" parameter, you can specify that only classes be removed or only added.

Syntax

$(selector).toggleClass(classname,function(index,currentclass),switch)

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Parameters	Description
classname	Required. Specifies one or more class names to be added or removed. If you need to specify several classes, use spaces to separate class names.
function(index,currentclass)	Optional. Specifies a function that returns one or more class names that need to be added/removed. index - Returns the index position of the element in the collection. currentclass - Returns the current class name of the selected element.
switch	Optional. Boolean value that specifies whether to only add (true) or remove (false) classes.

Introduction to usage:

jQuery creates article paragraphs to change the background color attribute jquery toggleClass() attribute.

The rendering is as follows:

File reference:

<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
 $("input").click(function(){
  $("p").toggleClass("main");
 });
});
</script>

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