JqueryUI - Switch Class

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This chapter will discuss the switchClass() method, which is a useful new class for manipulation. switchClass() method move from one CSS one CSS class to another, animating the transition from one state to the other.

Syntax

Added In Version 1.0 of jQueryUI

The switchClass() method has its basic syntax as follows −

.switchClass( removeClassName, addClassName [, duration ] [, easing ] [, complete ] )
Sr.No. Parameter & Description
1

removeClassName

This is a String and represents the CSS class name, or space-delimited list of class names, to be removed.
2

addClassName

This is of type String and represents one or more class names (space separated) to be added to the class attribute of each matched element.
3

duration

This is of type Number or String and optionally provides one of slow, normal, fast, or the duration of the effect in milliseconds. If omitted, the animate() method determines the default. Its default value is 400.
4

easing

The name of the easing function to be passed to the animate() method.
5

complete

This is a callback method called for each element when the effect is complete for this element.

Added In Version 1.9 of jQueryUI

With version 1.9, this method now supports a children option, which will also animate descendant elements.

.switchClass( removeClassName, addClassName [, options ] )
Sr.No. Parameter & Description
1

removeClassName

This is a String and represents the CSS class name, or space-delimited list of class names, to be removed.
2

addClassName

This is of type String and represents one or more class names (space separated) to be added to the class attribute of each matched element.
3

options

This represents all animation settings. All properties are optional. Possible values are −

  • duration − A string or number determining how long the animation will run.. Its default value is 400.

  • easing − A string indicating which easing function to use for the transition. Its default value is swing. Possible values are here.

  • complete − This is a callback method called for each element when the effect is complete for this element.

  • children − This is a Boolean and represents whether the animation should additionally be applied to all descendants of the matched elements.

  • queue − This is of type String/Boolean indicating whether to place the animation in the effects queue..

Examples

The following example demonstrates the use of switchClass() method.

<!doctype html>
<html lang = "en">
   <head>
      <meta charset = "utf-8">
      <title>jQuery UI Switch Class Example</title>
      <link href = "https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css"
         rel = "stylesheet">
      <script src = "https://code.jquery.com/jquery-1.10.2.js"></script>
      <script src = "https://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
      
      <!-- CSS -->
      <style>
         .LargeClass {
            font-family: Arial;
            font-size: large;
            font-weight: bold;
            color: Red;
         }
         .NormalClass {
            font-family: Arial;
            font-size: small;
            font-weight: bold;
            color: Blue;
         }
      </style>
      
      <script>
         $(function() {
            $('#btnSwitch').click(function() {
               $(".NormalClass").switchClass("NormalClass","LargeClass",'fast');
               $(".LargeClass").switchClass("LargeClass","NormalClass",'fast');
               return false;
            });
         });
      </script>
   </head>
   
   <body>
      <div class = "NormalClass">
         Howcodex Rocks!!!
      </div>
      <div class = "NormalClass">
         Welcome to Howcodex!!!
      </div>
      <br />
      <input type = "button" id = "btnSwitch" value = "Switch Class" />
   </body>
</html>

Let us save the above code in an HTML file switchclassexample.htm and open it in a standard browser which supports javascript, you must also see the following output. Now, you can play with the result −

Click on the Switch Class button to see the effect of classes on the box.

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