Run results for: Hashmap.has vs Array.Filter (random access - generated at start)

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

158.5M/s

Array.filter

63K/s

View exact numbers

Test name	Executions per second
✓ Hashmap	158,471,312 Ops/sec
Array.filter	62,993 Ops/sec

Script Preparation code:

const counter = 10000
const map = new Map()
const array = new Array(counter)
let randomIndex = getRandomInt(counter)

window.counter = counter
window.map = map
window.array = array
for (let i = 0; i < counter; i++) {
    map.set(i)
    array[i] = i
}

function getRandomInt(max) {
  	return Math.floor(Math.random() * max);
}

Tests:

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