How jquery replaces class

This article introduces the relevant knowledge of "how jquery replaces class". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The way to replace class: 1. Delete the old class;2 using removeClass (), add the new class using addClass (), and use the syntax "$(selector) .removeClass (" old class name ") .addClass (" new class name ")".

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

Jquery replaces class (class)

Implementation method:

Use removeClass () to delete the old class

Use addClass () to add a new class

Implementation code:

$(document) .ready (function () {$("button") .click (function () {$("p"). RemoveClass ("intro1"). AddClass ("intro2");}) .intro1 {font-size: 120%; color: red;} .intro2 {color: peru Background-color: aquamarine;} Test paragraph

Replace class

Description:

The removeClass () method removes one or more 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.

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