jQuery deferred.fail() Method
jQuery deferred.fail() Method
The jQuery deferred.fail() method adds handlers to be called when the Deferred object is rejected.
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 deferred.fail() Method</h1>
<p>Click on the button to check whether request succeed or fail.</p>
<button>Send Get Request</button>
<script>
$(document).ready(function(){
$("button").click(function(){
$.get("/greet.php", function(data){
alert(data);
}).done(function() {
alert("$.get is succeeded");
}).fail(function() {
alert("$.get is failed!");
});
});
});
</script>
</body>
</html>
Syntax
deferred.fail(failCallbacks);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| failCallbacks | Required | Specifies a function, or array of functions, that are called when the Deferred is rejected. |
Reminder
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