jQuery class transition animation

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In this video we will discuss jQuery UI support for animating class transitions.

jQuery UI adds support for animating colors and class transitions. We discussed animating colors in Part 101 of jQuery tutorial. In this video we will discuss animating class transitions.

With the basic jQuery functionality, the following methods will not animate style properties of a css class.
.addClass()
.removeClass()
.toggleClass()

jQuery UI supports animating class transitions. In the example below a reference to jQuery UI is included, hence the class transition animations work while adding and removing classes. If we remove the jQuery UI reference, class transition animations will not work.

<!DOCTYPE html>
<head runat="server">
<title></title>
<script type="text/javascript">
$(document).ready(function () {
var applyClass = true;
$('#btnAnimate').click(function () {
if (applyClass) {
$('#myDiv').addClass('redDiv', 2000);
}
else {
$('#myDiv').removeClass('redDiv', 2000);
}
applyClass = !applyClass;
});
});
</script>
<style>
.redDiv {
background-color: red;
color: white;
font-size: 20px;
border: 5px solid black;
padding: 5px;
width: 500px;
}
</style>
</head>
<body style="font-family: Arial">
<form id="form1" runat="server">
<div id="myDiv">
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</div>
<br />
<input type="button" id="btnAnimate" value="Animate" />
</form>
</body>
</html>

toggleClass() example : Modify the code in jQuery ready function to use toggleClass() instead of addClass() and removeClass() methods.

$(document).ready(function () {
$('#btnAnimate').click(function () {
$('#myDiv').toggleClass('redDiv', 2000);
});
});

The following are the common parameters of a addClass(), removeClass() and toggleClass() methods.
className - The css class name that you want to add, remove or toggle
speed - animation speed. The value can be a string ('slow', 'normal', or 'fast') or a number of milli-seconds. The default is normal i.e 400 milli-seconds. slow and fast are 600 and 200 milli-seconds respectively.
easing - The value is a string the specifies the name of the easing function. Easing functions specify the speed at which an animation progresses at different points within the animation
callback - A function to call once the animation is complete

List of all easing functions
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This is best tutorial for jQuery Step by Step (Thank)

nbtion
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Hello venkat sir,

Thank u very much sir, for sharing ur knowledge with us, u r great person & please provide more videos on jQuery + Ajax also. Because we dont have another brilliant teacher like you. :)

Love u sir..

your student!
Mohd. Rehbar sheikh

muhammadrehbarsheikh
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Hello Sir,

I'm learning JQuery from your video tutorials. I wanted to know how many more videos are you going to Update? Just curious to know whether have I covered most of the concepts or not

srinshav
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