Run results for: For in vs Object.*.forEach vs Object.values different

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:146.0) Gecko/20100101 Firefox/146.0

Browser: Firefox 146

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 8 months ago

Benchmark engine: Benchmark.js

object values forEach

179K/s

Object values

178K/s

Object keys forEach

170K/s

Object entries forEach

153K/s

For In with larger keys

117K/s

View exact numbers

Script Preparation code:

var obj = new Object()
var keys = [1000000, 1000001];
keys.forEach((x) => { obj[x.toString()] = x })

Tests:

For In with larger keys
console.log(obj.length) for( var key in obj ) { var player = obj[key]; console.log(player); }
Object values
for(let value of Object.values(obj)){ console.log(value); }
Object keys forEach
Object.keys(obj).forEach(key => console.log(obj[key]));
Object entries forEach
Object.entries(obj).forEach(([key, value]) => console.log(key,'->',value));
object values forEach
Object.values(obj).forEach(value => console.log(value));