Run results for: Object.entries vs Generator

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Edg/131.0.0.0

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Object.entries

5K/s

Generator

3K/s

View exact numbers

Test name	Executions per second
✓ Object.entries	5,395 Ops/sec
Generator	3,051 Ops/sec

Script Preparation code:

var data = { ...Array.from(Array(10000).keys()) };

Tests:

Object.entries
Object.entries(data);
Generator
[ ...(function* () { for (const key in data) { yield [key, data[key]]; } })() ];