A number of these things are available in IE9 and older using https://github.com/es-shims/es5-shim https://github.com/es-shims/es5-shim (including Object.create

A number of these things are available in IE9 and older using https://github.com/es-shims/es5-shim https://github.com/es-shims/es5-shim (including Object.create that the article was talking about)