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Run results for:
Object.fromEntries vs lodash fromPairs vs Object.assign vs Object spread
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0
Browser:
Firefox 148
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 months ago
Test name
Executions per second
Object.fromEntries
24075630.0 Ops/sec
_.fromPairs
30108272.0 Ops/sec
Object.assign
15351860.0 Ops/sec
Object spread
6091588.0 Ops/sec
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 }};