- http://www.slideshare.net/kangax/say-hello-to-ecmascript-5
- http://kangax.github.com/es5-compat-table/
- https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
- http://es5.github.com/
- http://ejohn.org/blog/ecmascript-5-objects-and-properties/
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