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用给定的参数调用所有的回调。
使用callbacks.fired() 确定,如果列表中的回调至少有一次被呼叫
// a sample logging function to be added to a callbacks list var foo = function( value ){ console.log( 'foo:' + value ); } var callbacks = $.Callbacks(); // add the function 'foo' to the list callbacks.add( foo ); // fire the items on the list callbacks.fire( 'hello' ); // outputs: 'foo: hello' callbacks.fire( 'world '); // outputs: 'foo: world' // test to establish if the callbacks have been called console.log( callbacks.fired() );