返回值:Booleancallbacks.fired()
V1.7概述
确定如果回调至少已经调用一次。
示例
描述:
使用callbacks.fired() 确定，如果列表中的回调至少有一次被呼叫
jQuery 代码:
// 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() );