Benchmark: Object.fromEntries vs lodash fromPairs vs Object.assign vs Object spread

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

Object.fromEntries
var a = [['a', 1], ['b', 2], ['c', 3]]; var b = Object.fromEntries(a);
_.fromPairs
var a = [['a', 1], ['b', 2], ['c', 3]]; var b = _.fromPairs(a);
Object.assign
var obj = {}; Object.assign(obj, { a: 1 }); Object.assign(obj, { b: 2 }); Object.assign(obj, { c: 3 });
Object spread
let obj = {}; obj = { ...obj, ...{ a: 1 }}; obj = { ...obj, ...{ b: 2 }}; obj = { ...obj, ...{ c: 3 }};

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0

Browser/OS: Firefox 148 on Windows

_.fromPairs

30.1M/s

Object.fromEntries

24.1M/s

Object.assign

15.4M/s

Object spread

6.1M/s

View exact numbers

Object.fromEntries vs lodash fromPairs vs Object.assign vs Object spread (version: 1)