Run results for: find faster - array.find vs map.get

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser: Chrome 139

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 11 months ago

map

491K/s

find

305K/s

View exact numbers

Test name	Executions per second
✓ map	490,503 Ops/sec
find	305,465 Ops/sec

Script Preparation code:

var arr = []
let i = 0
let len = 100
for(;i<len;i++) {
	arr.push({ key:i, value: i})                
}

Tests:

find
arr.find(({key}) => key === 90) arr.find(({key}) => key === 91) arr.find(({key}) => key === 92) arr.find(({key}) => key === 93) arr.find(({key}) => key === 94) arr.find(({key}) => key === 95)
map
const map = arr.reduce((acc, item) => { acc.set(item["key"], item["value"]); return acc; }, new Map()) map.get(90) map.get(91) map.get(92) map.get(93) map.get(94) map.get(95)