Run results for: iso date string sort comparison

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

sort

4.6M/s

manual compare

3.4M/s

localcompare

433K/s

date convert to date + sort a-b (timezone safe)

400K/s

date convert to timestamp + sort (timezone safe)

392K/s

View exact numbers

Test name	Executions per second
✓ sort	4,640,796 Ops/sec
manual compare	3,370,762 Ops/sec
localcompare	432,778 Ops/sec
date convert to date + sort a-b (timezone safe)	400,290 Ops/sec
date convert to timestamp + sort (timezone safe)	391,587 Ops/sec

Script Preparation code:

var dates = [
  '2021-11-22T11:00:00.000Z',
  '2021-11-22T07:00:00.000Z',
  '2021-11-24T12:30:00.000Z',
  '2021-11-24T07:00:00.000Z',
  '2021-11-24T07:00:00.000Z',
  '2021-11-26T07:00:00.000Z',
  '2021-11-26T12:30:00.000Z',
  '2021-11-26T12:30:00.000Z',
  '2021-11-27T11:00:00.000Z',
  '2021-11-27T12:30:00.000Z',
  '2021-09-22T11:00:00.000Z',
  '2021-09-22T07:00:00.000Z',
  '2021-09-24T12:30:00.000Z',
  '2021-09-24T07:00:00.000Z',
  '2021-09-24T07:00:00.000Z',
  '2021-09-26T07:00:00.000Z',
  '2021-05-26T12:30:00.000Z',
  '2021-12-26T12:30:00.000Z',
  '2021-09-27T11:00:00.000Z',
  '2021-09-27T12:30:00.000Z',
];

Tests: