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This article mainly introduces "how jquery replaces all class names". In daily operation, I believe many people have doubts about how jquery replaces all class names. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how jquery replaces all class names". Next, please follow the editor to study!

Method: 1, use the removeClass () method to delete all the class names of the element, the syntax is "element object .removeClass ();"; 2, use the addClass () method to add the class name you want to replace, and the syntax is "element object .addClasss (" new class name ");".

The operating environment of this tutorial: windows10 system, jquery3.2.1 version, Dell G3 computer.

How does jquery replace all class names

In jquery, we can use the removeClass () method to delete all the class names of the element, and then use the addClass () method to add the class name we want to replace.

The removeClass () method removes one or more classes from the selected element.

Note: if no parameters are specified, the method removes all classes from the selected element.

The addClass () method adds one or more classes to the selected element.

This method does not remove the existing class attribute, but simply adds one or more class attributes.

Tip: if you need to add more than one class, separate the class names with spaces.

Examples are as follows:

$(document) .ready (function () {$(".anniu1") .click (function () {$("p"). RemoveClass ();}); $(".anniu2") .click (function () {$("p"). AddClass ("intro2");}); .intro1 {font-size:120%;color:red;} .intro2 {font-size:200%;color:pink;} This is a paragraph.

Delete class and add class

Output result:

At this point, the study of "how to replace all the class names by jquery" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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