Run results for: object method scope lookup

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

use own

3.6M/s

use arrow

2.5M/s

hoisted global

2.5M/s

View exact numbers

Test name	Executions per second
✓ use own	3,562,874 Ops/sec
use arrow	2,535,650 Ops/sec
hoisted global	2,484,165 Ops/sec

Script Preparation code:

var arrow = x => x + 1;

var object = {
  useHoistedGlobal(x) {
  	return hoistedGlobal(x);
  },
  useArrow(x) {
    return arrow(x);
  },
  useOwn(x) {
    return this._own(x);
  },
  _own(x) {
    return x + 1;
  }
}

function hoistedGlobal(x) {
  return x + 1;
}

var n = 420;

Tests:

hoisted global
n = object.useHoistedGlobal(1);
use arrow
n = object.useArrow(1);
use own
n = object.useOwn(1);