Run results for: pre-sorted sorting (int vs obj)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15

Browser: Safari 12

Operating system: Mac OS X 10.14.3

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
pre sorted int	63477.5 Ops/sec
reverse int	63936.0 Ops/sec
shuffled int	72037.5 Ops/sec
pre sorted obj	78871.5 Ops/sec
reverse obj	92697.5 Ops/sec
shuffled obj	89026.0 Ops/sec

Script Preparation code:

function shuffle_arr(arr) {
  	const a = [...arr];
    for (let i = a.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1));
        [a[i], a[j]] = [a[j], a[i]];
    }
    return a;
}

var pre_sorted_int = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100];
var reverse_int = pre_sorted_int.reverse();
var shuffled_int = shuffle_arr(pre_sorted_int);

var pre_sorted_obj = [{"id":"0"},{"id":"1"},{"id":"2"},{"id":"3"},{"id":"4"},{"id":"5"},{"id":"6"},{"id":"7"},{"id":"8"},{"id":"9"},{"id":"a"},{"id":"b"},{"id":"c"},{"id":"d"},{"id":"e"},{"id":"f"},{"id":"10"},{"id":"11"},{"id":"12"},{"id":"13"},{"id":"14"},{"id":"15"},{"id":"16"},{"id":"17"},{"id":"18"},{"id":"19"},{"id":"1a"},{"id":"1b"},{"id":"1c"},{"id":"1d"},{"id":"1e"},{"id":"1f"},{"id":"20"},{"id":"21"},{"id":"22"},{"id":"23"},{"id":"24"},{"id":"25"},{"id":"26"},{"id":"27"},{"id":"28"},{"id":"29"},{"id":"2a"},{"id":"2b"},{"id":"2c"},{"id":"2d"},{"id":"2e"},{"id":"2f"},{"id":"30"},{"id":"31"},{"id":"32"},{"id":"33"},{"id":"34"},{"id":"35"},{"id":"36"},{"id":"37"},{"id":"38"},{"id":"39"},{"id":"3a"},{"id":"3b"},{"id":"3c"},{"id":"3d"},{"id":"3e"},{"id":"3f"},{"id":"40"},{"id":"41"},{"id":"42"},{"id":"43"},{"id":"44"},{"id":"45"},{"id":"46"},{"id":"47"},{"id":"48"},{"id":"49"},{"id":"4a"},{"id":"4b"},{"id":"4c"},{"id":"4d"},{"id":"4e"},{"id":"4f"},{"id":"50"},{"id":"51"},{"id":"52"},{"id":"53"},{"id":"54"},{"id":"55"},{"id":"56"},{"id":"57"},{"id":"58"},{"id":"59"},{"id":"5a"},{"id":"5b"},{"id":"5c"},{"id":"5d"},{"id":"5e"},{"id":"5f"},{"id":"60"},{"id":"61"},{"id":"62"},{"id":"63"}];
var reverse_obj = pre_sorted_obj.reverse();
var shuffled_obj = shuffle_arr(pre_sorted_obj);

var obj_sorter = (a,b) => {
  if (a.id < b.id) {
    return -1;
  }
  if (a.id > b.id) {
    return 1;
  }
  return 0;
}

Tests:

pre sorted int
const sorted = pre_sorted_int.sort();
reverse int
const sorted = reverse_int.sort();
shuffled int
const sorted = shuffled_int.sort()
pre sorted obj
const sorted = pre_sorted_obj.sort(obj_sorter);
reverse obj
const sorted = reverse_obj.sort(obj_sorter);
shuffled obj
const sorted = shuffled_obj.sort(obj_sorter);

Run results for: pre-sorted sorting (int vs obj)

pre sorted int

reverse int

shuffled int

pre sorted obj

reverse obj

shuffled obj