Copy prototype for inheritance?

Question

I was playing around with JavaScript in particular simulating object oriented programming with classes and whatnot.

I knew about this way of achieving inheritance

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Answer 1

This is almost exactly what Object.create does. The function you've written is a pretty standard "polyfill" for that method.

This is a really common way of abstracting object creation in a way that more closely reflects "true" prototypal inheritance. Definitely a safe way to do things.

Oh, and here's a link to the MDN entry for Object.create, if you're interested: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object/create/

You'll notice at the bottom that they actually include the polyfill, which is pretty much identical to your code, save for some safety checks and variable names.