| compiler option | since v0.0-2197 | Edit |
Set the input language for Google Closure Compiler.
:language-in :ecmascript6 ;; default
Available options (:ecmascript... can be replaced with :es... as shorthand):
:ecmascript3 - 90's JavaScript.:ecmascript5 - Traditional JavaScript.:ecmascript5-strict - Nitpicky, traditional JavaScript.:ecmascript6-typed - A superset of ES6 which adds Typescript-style type declarations. Always strict.:ecmascript-2015 - ECMAScript standard approved in 2015.:ecmascript-2016 - ECMAScript standard approved in 2016. Adds the exponent operator **.:ecmascript-2017 - ECMAScript standard approved in 2017. Adds async/await.:ecmascript-next - ECMAScript latest draft standard.