Run results for: Object.entries vs Generator vs Array.push with For in

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Object.entries

1K/s

Array.push with For in

686/s

Generator

502/s

View exact numbers

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]]; } })() ];
Array.push with For in
const result = []; for (const key in data) { result.push([key, data[key]]); } result;