Could not find this answer anywhere, but I did find several mailing lists where this was discussed, these are rather old however and I have no idea if this is implemented or not.
Is there anyway to force using strict mode in node.js?
"use strict"; in all my .js files... well, i prefer it being forced to using strict mode, rather than adding extra boilerplate.
According to Lloyd you can now place
at the top of your file in node >= 0.10.7, but if you want your whole app to run in strict (including external modules) you can do this
In node 0.10.7 you can enforce strict mode at file level by placing
"use strict"; at the top of your file. Finally!