Option to support implied strict (ES6 modules)?

[dead-claudia]

ES6 modules are specified to always be in strict mode, regardless of if there is a "use strict" directive. Every transpiler I've come across, from 6to5 to ES6 Module Transpiler to Traceur all add that statement, without any option to omit it. Something like a boolean impliedstrict could be useful here, as a relaxing option.

The "strict by default" for modules has been in the spec for quite some time, probably a lot longer than the import/export syntax itself.

[dead-claudia]

The specific section stating this is 10.2.1 of the ECMAScript 6 Draft. The second bullet in the list of that section says, unambiguously:

• Module code is always strict code.

This is why I believe an option stating that no use strict is necessary, but it should still be parsed as such.

[jugglinmike]

We just landed gh-2306, so you can expect the module option in the next version of JSHint (>2.7.0).

Thanks for the report!