jQuery deferred.fail() Method

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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.

Browser Support

Devicedesktopmobile
Browsergoogle chromesafarifirefoxinternet Exploreredgeoperagoogle chromesafarifirefoxedgeoperaandroid webviewsamsung internet
deferred.fail()YesYesYesYesYesYesYesYesYesYesYesYesYes

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