callbacks.locked()
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:
// 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
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