jQuery deferred.fail()Method

jQuery 杂项方法jQuery Miscellaneous Methods

Example

Call deferred.fail() when the Deferred object is rejected

$(function () { $.get("test.php") .done(function(){ alert("$.get success!"); }) .fail(function(){ alert("$.get failed!"); }); })

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Definition and Usage

The deferred.fail() function calls the added handlers when the Deferred object is rejected.
Tip:This method accepts one or more parameters. deferred.fail() returns a Deferred object, which can be chained to other deferred object methods, including additional .fail() methods. When the Deferred object is rejected, the callback functions execute in the order they were added, and can be passed as parameters to methods such as: deferred.resolve() or deferred.rejectWith().


Syntax

deferred.fail( failCallbacks [, failCallbacks ] )

Parameter Description
failCallbacks Function type - A function or array of functions, called when the Deferred object is rejected
failCallbacks Optional. Function type - A function or array of functions, called when the Deferred object is rejected


jQuery 杂项方法jQuery Miscellaneous Methods

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