Run results for: map and find may vs array find may

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0

Browser: Firefox 148

Operating system: Windows

Device Platform: Desktop

Date tested: 6 months ago

Benchmark engine: Benchmark.js

create map and find may

3/s

array find may

0/s

View exact numbers

Test name	Executions per second
✓ create map and find may	3 Ops/sec
array find may	0 Ops/sec

Script Preparation code:

var arr = Array.from({length: 1000000}).map((_,i) => ({id: i}));
var findTargets = Array.from({length: 1000}).map((_,i) => idGen());
function idGen() {
  return Math.floor(Math.random() * 1000000) % 1000000
}

Tests:

create map and find may
const arrMap = new Map(arr.entries()); findTargets.forEach(target => arrMap.get(target));
array find may
findTargets.forEach(target => arr.find((i) => i.id === target));