ECMAScript is the standardized language
Best known implementation is JavaScript
ECMAScript 6 is a superset of current version
Current version is ECMAScript 5.1 (2011)
Next version is officially ECMAScript 2015
ECMAScript 6 (ES6) mindshare tough to penetrate
ECMAScript 6 is complete
Spec is finalized
Publication in June 2015
Browsers continually implementing features
Fully compliant browser by end of 2015?
Transpile: ES6 -> ES5
ES6 shims
Sourcemaps