14 ms·

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

• cygx 12y ago
  Yup. The proper way to emulate new is Foo.call(Object.create(Foo.prototype))
  • LazerBear 12y ago
    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 12y ago
      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 12y ago
        Ah that's fantastic, i've been using them for a while and never noticed.