Using “Object.create” instead of “new”

Question

Javascript 1.9.3 / ECMAScript 5 introduces Object.create, which Douglas Crockford amongst others has been advocating for a long time. How do I replace new

Answer 1

TL;DR:

new Computer() will invoke the constructor function Computer(){} for one time, while Object.create(Computer.prototype) won't.

All the advantages are based on this point.

Sidenote about performance: Constructor invoking like new Computer() is heavily optimized by the engine, so it may be even faster than Object.create.