Le 20 août 2014 à 16:56, Alex Kocharin <[email protected]> a écrit :
>
> But... why?
>
> I mean, every constructor can determine if it is called without `new` (that
> "this instanceof" check on top of every other constructor). So `new` keyword
> can really be removed from everywhere except in constructors themselves.
>
> Using `new` does create issues. For example, you can't write "new
> require('something').Constructor(blah)", and I don't even remember how to put
> brackets right.
>
> Why make people use it?
According to http://esdiscuss.org/notes/2013-07-25 (search for "anti-pattern"),
allowing constructors without `new` would break subclassing.
—Claude
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