示例

描述:

使用 callbacks.disable() 禁用回调列表：

jQuery 代码:

// a sample logging function to be added to a callbacks list

var foo = function( value ){

    console.log( value );

}



var callbacks = $.Callbacks();



// add the above function to the list

callbacks.add( foo );



// fire the items on the list

callbacks.fire( 'foo' ); // outputs: foo



// disable further calls being possible

callbacks.disable();



// attempt to fire with 'foobar' as an argument

callbacks.fire( 'foobar' ); // foobar isn't output