Answers for "sorting array of objects in object field in javascript"

javascript sort array of objects by key value

arr.sort((x, y) => x.distance - y.distance);

javascript sort array of object by property

function sortByDate( a, b ) {
  if ( a.created_at < b.created_at ){
    return -1;
  }
  if ( a.created_at > b.created_at ){
    return 1;
  }
  return 0;
}

myDates.sort(sortByDate);//myDates is not sorted.