Run results for: Object.fromEntries vs create temp object

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.0.0 Safari/537.36

Browser: Chrome 90

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Object.fromEntries	188.1 Ops/sec
creating temporary objects	841.3 Ops/sec

Script Preparation code:

var array = Array.from(Array(10000).keys())

Tests:

Object.fromEntries
Object.fromEntries(array.map(value => [value, value]));
creating temporary objects
const data = {} array.forEach(value => data[value] = value);