Closures and Scopes.js

/*
Description:
We want to create a function, which returns an array of functions, which return their index in the array. For better understanding, here an example:

var callbacks = createFunctions(5); // create an array, containing 5 functions

callbacks[0](); // must return 0
callbacks[3](); // must return 3
We already implemented that function, but when we actually run the code, the result doesn't look like what we expected. Can you spot, what's wrong with it? A test fixture is also available
*/
function createFunctions(n) {
  var callbacks = [];

  for (let i=0; i<n; i++) {
    callbacks.push(function() {
      return i;
    });
  }
  
  return callbacks;
}