jQuery when() Method
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jQuery when() Method
The jQuery when() method provides a way to execute callback functions based on zero or more Deferred objects that represent asynchronous events.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery when() Method</h1>
<button>Send Get and Post Request</button>
<script>
$(document).ready(function(){
$("button").click(function(){
$.when($.get("/greet.php"), $.post("/greet.php"))
.then(mySuccess, myFailure)
});
function mySuccess(){
alert("Both request are success");
}
function myFailure(){
alert("Either or both request are failed");
}
});
</script>
</body>
</html>
Syntax
$.when(deferreds);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| deferreds | Optional | Zero or more Thenable (Deferred) objects. |
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