Benchmark: create new Map vs create new Array

Tests:

new Array
let arr = [1,2,3,5,6,7,8,9,10,11,12,13] const filteredArr = arr.filter(item => item !== 1) const result = arr.find(item => item === 13) arr = filteredArr
new Map
const map = new Map([['1', '1'], ['2', '2'], ['3', '3'], ['4', '4'], ['5', '5'], ['6', '6'], ['7', '7'] ,['8', '8'] ,['9', '9']]) map.delete('2') const result = map.get('1') const updatedMap = new Map(map)

Rendered benchmark preparation results:

Previous results

Test case name	Result
new Array
new Map

Latest run results:

Run details: (Test run date: 2 years ago)

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/OS: Chrome 120 on Mac OS X 10.15.7

new Array

42.1M/s

new Map

1.7M/s

View exact numbers

Test name	Executions per second
✓ new Array	42,055,492 Ops/sec
new Map	1,680,701 Ops/sec

create new Map vs create new Array (version: 0) Benchmark.js