[LazerBear]

That's a cool trick, though 'instanceof' won't work in this case.

[cygx]

Yup. The proper way to emulate new is

    Foo.call(Object.create(Foo.prototype))

[LazerBear]

Douglas Crockford, is that you? Oh the lengths people will go to avoid using 'new'...

I wonder if any linters out there warn when they see something like:

  something = SomeCapitalizedFunction()

Because forgetting to use 'new' is really the only thing I could think of that makes this pattern dangerous.

[jdlshore]

Yes, jslint and jshint both do, by default, iirc. They'll also warn on the opposite (using 'new' with a function that doesn't start with an uppercase letter).

[LazerBear]

Ah that's fantastic, i've been using them for a while and never noticed.