Standard ECMA-262 6th Edition / June 2015 ECMAScript® 2015 Language Specification This is the HTML rendering of ECMA-262 6th Edition, The ECMAScript 2015 Language Specification. The PDF rendering of this document is located at http://www.ecma-international.org/ecma-262/6.0/ECMA-262.pdf. The PDF version is the definitive specification. Any discrepancies between this HTML version and the PDF version