Run results for: foreach vs spread operator 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0

Browser: Firefox 122

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

forEach

12.6M/s

spread operator

3.2M/s

View exact numbers

Test name	Executions per second
✓ forEach	12,587,041 Ops/sec
spread operator	3,239,620 Ops/sec

Tests:

forEach
var a = {'1': 1, '2': 2, '3': 3, '4': 4} var b = [{id: 5}, {id: 6}, {id: 7}, {id: 8}] b.forEach(x => { a[x.id] = x })
spread operator
var a = {'1': 1, '2': 2, '3': 3, '4': 4} var b = [{id: 5}, {id: 6}, {id: 7}, {id: 8}] a = {...a, ...b.reduce((obj, item) => { obj[item.id]; return obj }, {})}