Sort an array of objects by date using moment

Sorting and ordering an array is quite easy, just use array.sort and pass the function which will sort it. Something like this:

const arr = [0, 10, 2, 3];
const newarr = arr.sort((a, b) => {
  return a - b;
});

Last week I needed to order an array of objects by their date. The array uses momentjs to render the dates. Looking at the moment documentation, very well written, I found easily the solution:

const arr = [
  { _id: 1, createdAt: moment('Sat Jan 07 2018 11:50:21 GMT+0000 (WET)') },
  { d_id: 2, createdAt: moment('Sat Jan 06 2018 11:50:21 GMT+0000 (WET)') }
];

const newarr = arr.sort((a, b) => {
  return moment(a.createdAt).diff(b.createdAt);
});

This will sort the array by date with moment.