callbacks.locked()

确定回调列表是否已被锁定。

callbacks.locked()

• 这个方法不接受任何参数
• 此函数返回: Boolean

例子

使用 callbacks.disabled() 确定回调列表是否已被锁定：

// 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