jQuery callbacks.fired () method
Examples
Determine whether the callback has been called at least once
$ (Function () {
// Will be added to the list a simple function
var foo = function ( value ) {
alert ( "Foo:" + value );}; Var . callbacks = $ Callbacks (); // add the function "foo" to the list
callbacks. add ( foo ); // Parameters passed to call all the callback list
callbacks. fire ( "Hello" ); // Output: "foo: hello"
callbacks. fire ( "World" ); // Output: "foo: world"
// Test whether the list is to be called back once
alert ( callbacks. fired () );})
try it"
Definition and Usage
callbacks.fired () function to determine if a callback has been called at least once.
grammar
This method does not accept any parameters.
callbacks.fired()