Run results for: object map vs switch

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

switch

5.7M/s

object map

2.4M/s

View exact numbers

Test name	Executions per second
✓ switch	5,660,412 Ops/sec
object map	2,390,039 Ops/sec

Script Preparation code:

var arr = [1, 2, 3, 4, 5]

Tests:

object map
const val = arr.at(Math.floor(Math.random() * 5)) const obj = { [1]: 'a', [2]: 'b', [3]: 'c', [4]: 'd', [5]: 'e' } const rt = obj[val]
switch
const val = arr.at(Math.floor(Math.random() * 5)) switch (val) { case 1: return 'a'; case 2: return 'b'; case 3: return 'c'; case 4: return 'd'; case 5: return 'e'; default: return ''; }