deferred.catch( failFilter )Returns: Promise

Description: Add handlers to be called when the Deferred object is rejected.

version added: 3.0deferred.catch( failFilter )
- failFilter
  
  A function that is called when the Deferred is rejected.

deferred.catch( fn ) is an alias to deferred.then( null, fn ). Read its page for more information.

Example:

Since the jQuery.get method returns a jqXHR object, which is derived from a Deferred object, we can add rejection handlers using the .catch method.

$.get( "test.php" )
  .then( function() {
    alert( "$.get succeeded" );
  } )
  .catch( function() {
    alert( "$.get failed!" );
  } );

deferred.catch( failFilter )Returns: Promise

version added: 3.0deferred.catch( failFilter )