> But in practice, strict mode can fade away as a transitional concept from ES5 
> that, while still spec'ed and implemented, doesn't get used much in practice. 
> Modules carry the torch of ES5-strict and take it even further, and become 
> the actual "mode" that gets used in practice, both because it is a useful 
> feature independent of the language cleanups in carries with it, and because 
> it doesn't require a noisy opt-in pragma.
> 
> So the language has 3 modes in the spec, but in practice only 2 that matter.


Crystal clear now, thanks!

-- 
Dr. Axel Rauschmayer
a...@rauschma.de
twitter.com/rauschma

Home: rauschma.de
Blog: 2ality.com

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