[jquery Method Toggleclass (CLASS|FN[,SW])] This method deletes (adds) a class if it exists (does not exist)

A function used to return the name of the style class to toggle on each element in the matching element collection:

If the second argument is callback, then the class name needs to be returned, and the function arguments are interpreted as follows:

1: Receive element's index position and element old style class as parameter

2: A Boolean value to determine whether the style class is added or removed

3. Boolean value to determine if the element contains Class (Sw[switch])

Instance:

<! DOCTYPE html>Input{font:13px/20px ' Courier New '; color: #000;} . addone{padding:08px;} . addtwo{color:#999;} Button[type= ' button ']{font:400 13px/1.2em ' Courier New ';p adding:3px;} </style><script type= ' Text/javascript ' >    $(function(){        $(' button '). Click (function(){           $(' #user '). Toggleclass (function(index,oldclass) {return' AddTwo ';        });    }); });</script>
[jquery Method Toggleclass (CLASS|FN[,SW])] This method deletes (adds) a class if it exists (does not exist)