Contents:
jQuery.queue( element [, queueName ] )Returns: Array
Description: Show the queue of functions to be executed on the matched element.
-
version added: 1.3jQuery.queue( element [, queueName ] )
Note: This is a low-level method, you should probably use -queue() instead-
Example:
Show the length of the queue.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.queue demo</title>
<style>
div {
margin: 3px;
width: 40px;
height: 40px;
position: absolute;
left: 0px;
top: 30px;
background: green;
display: none;
}
div.newcolor {
background: blue;
}
span {
color: red;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
</head>
<body>
<button id="show">Show Length of Queue</button>
<span></span>
<div></div>
<script>
$( "#show" ).click(function() {
var n = jQuery.queue( $( "div" )[ 0 ], "fx" );
$( "span" ).text( "Queue length is: " + n.length );
});
function runIt() {
$( "div" )
.show( "slow" )
.animate({
left: "+=200"
}, 2000 )
.slideToggle( 1000 )
.slideToggle( "fast" )
.animate({
left: "-=200"
}, 1500 )
.hide( "slow" )
.show( 1200 )
.slideUp( "normal", runIt );
}
runIt();
</script>
</body>
</html> Demo:
jQuery.queue( element, queueName, newQueue )Returns: jQuery
Description: Manipulate the queue of functions to be executed on the matched element.
-
version added: 1.3jQuery.queue( element, queueName, newQueue )
-
version added: 1.3jQuery.queue( element, queueName, callback )
Note: This is a low-level method, you should probably use -queue() instead-
Every element can have one or more queues of functions attached to it by jQuery- In most applications, only one queue (called fx) is used- Queues allow a sequence of actions to be called on an element asynchronously, without halting program execution-
The jQuery-queue() method allows us to directly manipulate this queue of functions- Calling jQuery-queue() with a callback is particularly useful; it allows us to place a new function at the end of the queue-
Note that when adding a function with jQuery-queue(), we should ensure that jQuery-dequeue() is eventually called so that the next function in line executes-
Examples:
Queue a custom function.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.queue demo</title>
<style>
div {
margin: 3px;
width: 40px;
height: 40px;
position: absolute;
left: 0px;
top: 30px;
background: green;
display: none;
}
div.newcolor {
background: blue;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
</head>
<body>
Click here...
<div></div>
<script>
$( document.body ).click(function() {
var divs = $( "div" )
.show( "slow" )
.animate({ left: "+=200" }, 2000 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).addClass( "newcolor" );
jQuery.dequeue( this );
});
divs.animate({ left: "-=200" }, 500 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).removeClass( "newcolor" );
jQuery.dequeue( this );
});
divs.slideUp();
});
</script>
</body>
</html> Demo:
Set a queue array to delete the queue.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery.queue demo</title>
<style>
div {
margin: 3px;
width: 40px;
height: 40px;
position: absolute;
left: 0px;
top: 30px;
background: green;
display: none;
}
div.newcolor {
background: blue;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
</head>
<body>
<button id="start">Start</button>
<button id="stop">Stop</button>
<div></div>
<script>
$( "#start" ).click(function() {
var divs = $( "div" )
.show( "slow" )
.animate({ left: "+=200" }, 5000 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).addClass( "newcolor" );
jQuery.dequeue( this );
});
divs.animate({ left: "-=200" }, 1500 );
jQuery.queue( divs[ 0 ], "fx", function() {
$( this ).removeClass( "newcolor" );
jQuery.dequeue( this );
});
divs.slideUp();
});
$( "#stop" ).click(function() {
jQuery.queue( $( "div" )[ 0 ], "fx", [] );
$( "div" ).stop();
});
</script>
</body>
</html> 
