Run results for: Hashmap.has vs Array.Filter

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Hashmap

149.4M/s

Array.filter

51K/s

View exact numbers

Test name	Executions per second
✓ Hashmap	149,379,456 Ops/sec
Array.filter	51,255 Ops/sec

Script Preparation code:

const counter = 10000
const map = new Map()
const array = new Array(counter)

window.counter = counter
window.map = map
window.array = array
for (let i = 0; i < counter; i++) {
    map.set(i)
    array[i] = i
}

Tests:

Hashmap
window.map.has(500)
Array.filter
window.array.filter((value) => value === 500)