Jquery delay () introduction and instructions

  • 2020-03-30 03:50:36
  • OfStack

Delay (duration, queueName)

Set a delay to delay the execution of later items in the queue.
New to jQuery 1.4. Used to delay the execution of functions in a queue. It can either delay the execution of an animated queue, or it can be used for a custom queue.

-sheldon: the duration of the event is milliseconds

QueueName: queue noun, default Fx, animated queue.

parameter describe
speed Optional. Set the speed of the delay.

Possible values:

  • ms
  • "slow"
  • "fast"
queueName Optional. Specify the name of the queue.

The default is "fx" , the standard effect queue.


$("button").click(function(){
$("#div1").delay("slow").fadeIn();
$("#div2").delay("fast").fadeIn();
}); 

Complete test code:


<!DOCTYPE html>
<html>
<head>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
 $("button").click(function(){
  $("#div1").delay("slow").fadeIn();
  $("#div2").delay("fast").fadeIn();
  $("#div3").delay(800).fadeIn();
  $("#div4").delay(2000).fadeIn();
  $("#div5").delay(4000).fadeIn();
 });
});
</script>
</head>

<body>
<p>This example sets different speed values for the delay() method.</p>
<button>Click to fade in boxes with a delay</button>
<br><br>
<div id="div1" style="width:90px;height:90px;display:none;background-color:black;"></div><br>
<div id="div2" style="width:90px;height:90px;display:none;background-color:green;"></div><br>
<div id="div3" style="width:90px;height:90px;display:none;background-color:blue;"></div><br>
<div id="div4" style="width:90px;height:90px;display:none;background-color:red;"></div><br>
<div id="div5" style="width:90px;height:90px;display:none;background-color:purple;"></div><br>
</body>
</html>

Ex. :

Head and bottom lazy loading animation


$(document).ready(function() {
 $('#header')
 .css({ 'top':-50 })
 .delay(1000)
 .animate({'top': 0}, 800);

 $('#footer')
 .css({ 'bottom':-15 })
 .delay(1000)
 .animate({'bottom': 0}, 800); 
});


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