http://www.davevoyles.com/object-observe-in-javascript-and-how-i-found-it-to-be-useful/ https://github.com/MaxArt2501/object-observe
origin - http://www.pipiscrew.com/?p=1670 js-object-observe
http://www.davevoyles.com/object-observe-in-javascript-and-how-i-found-it-to-be-useful/ https://github.com/MaxArt2501/object-observe
origin - http://www.pipiscrew.com/?p=1670 js-object-observe