In Ember.js, what is the difference between [] and Ember.A([])?
ember.js
Solution
Your question contains the correct answer: `Ember.A()` just a way to define an `Ember.Array` when you have turned off the prototype extensions. You'll notice that Ember's internal code always uses `Ember.A()`.
Problem
While looking through apps written with Ember.js, I noticed that sometimes arrays are defined with a call to `Ember.A()` and sometimes array literals are used. When I ran `Ember.A([1])` in the browser console, the return value looks just like an array and arrays created using array literals had the Ember.js methods `pushObject` and friends. Is the call to `Ember.A()` just a way to define an `Ember.Array` when you don't use prototype extensions? Otherwise are arrays all created equal?