jquery 手册
Ajax
属性(Attributes)
回调对象(Callbacks ..
核心(Core)
CSS
数据(Data)
延迟对象(Deferred o ..
尺寸(Dimensions)
效果(Effects)
事件(Events)
表单(Forms)
文档操作(Manipulati ..
杂项(Miscellaneou ..
位置(Offset)
插件编写(Plugin Aut ..
属性(Properties)
选择器(Selectors)
遍历(Traversing)
工具(Utilities)

Returns: BooleanBoolean .callbacks.fired( )

描述: 判断回调函数至少被调用过一次。
  • version added: 1.7
  • .callbacks.fired( )

Example

callbacks.fired() 方法判断回调列表中的所有函数被调用过至少一次。

// 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() );

Examples: