自己动手实现jQuery Callbacks完整功能代码详解(9)

this.fire = function ( args )
                {
                    _fire( this, args );
                    return this;
                };

this.lock = function ()
                {
                    _locked = true;
                    return this;
                };

this.locked = function ()
                {
                    return _locked;
                };

};

// exposed to global as a factory method
            window.callbacks = function ( options )
            {
                return new Callbacks( options );
            };

} )( window );

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