Run results for: Object values vs Object.entries VS Object.keys

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Object.keys

507K/s

Object.values

166K/s

Object.entries

87K/s

View exact numbers

Test name	Executions per second
✓ Object.keys	506,665 Ops/sec
Object.values	165,905 Ops/sec
Object.entries	87,243 Ops/sec

Script Preparation code:

function makeid() {
  var text = "";
  var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

  for (var i = 0; i < 5; i++)
    text += possible.charAt(Math.floor(Math.random() * possible.length));

  return text;
}

window.parentObj = {};

for (let i = 0; i < 100; i++) {
	window.parentObj[makeid()] = { innerVal: makeid() };
}

Tests:

Object.entries
const newObj = {}; Object.entries(window.parentObj).forEach(([k, v], i) => { if ((i % 2) === 0) { newObj[i] = v; } });
Object.keys
const newObj = {}; Object.keys(window.parentObj).forEach((k, i) => { if ((i % 2) === 0) { newObj[i] = window.parentObj[k]; } });
Object.values
const newObj = {}; Object.values(window.parentObj).forEach((v, i) => { if ((i % 2) === 0) { newObj[i] = v; } });