unary :: operator proposal

[michaelficarra]

We have the binary :: operator, as in Function::toString. I propose adding a prefixed unary version that behaves as if the binary operator's left operand was Object. This would make common tasks such as Object::hasOwnProperty (::hasOwnProperty) and Object::toString (::toString) shorter.

[jashkenas]

Nice idea, but I think it's too ambiguous. If I were looking at:

::toString

And I had never seen it before, besides looking like a typo, I'd assume that it referred to the prototype of the global object: window.prototype.toString.