Run results for: object.keys map vs for in

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0

Browser: Firefox 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
for in	874069.8 Ops/sec
object.keys map	2926517.0 Ops/sec

Tests:

for in
const list = [] const data = { 1: '100', 2: '200', 3: '300' } for (const key in data) { list.push({ value: key, name: data }) }
object.keys map
const data = { 1: '100', 2: '200', 3: '300' } const list = Object.keys(data).map(it => ({ value: it, name: data[it] }))