ECMA-262 6th Edition

ecma第六版文档

http://www.ecma-international.org/ecma-262/6.0/#sec-object.setprototypeof

 

ecma第六版兼容表

http://kangax.github.io/compat-table/es6/

 

ecma6=>ecma5转码演示

http://google.github.io/traceur-compiler/demo/repl.html#