# callbacks.locked()

所属分类：回调对象 英文文档：callbacks.locked()

## callbacks.locked()返回: Boolean

描述: 确定回调列表是否已被锁定。

- #### 添加的版本: 1.7callbacks.locked()

  - 这个方法不接受任何参数

## 例子:

#### 使用 `callbacks.disabled()` 确定回调列表是否已被锁定：

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    // a sample logging function to be added to a callbacks list  var foo = function( value ) {    console.log( "foo:" + value );  };   var callbacks = $.Callbacks();   // add the logging function to the callback list  callbacks.add( foo );   // fire the items on the list, passing an argument  callbacks.fire( "hello" );  // outputs "foo: hello"   // disable the callbacks list  callbacks.disable();   // test the disabled state of the list  console.log ( callbacks.disabled() );  // outputs: true