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Run results for:
Deep merge: lodash vs ramda vs Object spread
Deep merge: lodash vs ramda vs Object spread
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<iframe src="https://measurethat.net/Embed?id=506676" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
lodash deep merge
527768.0 Ops/sec
ramda deep merge
1284020.6 Ops/sec
object spread deep merge
3182740.5 Ops/sec
HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js"></script>
Tests:
lodash deep merge
const a = { a: { c: { e: { h:4 }, f: 3 }, d: 2 }, b: 1 }; const b = { a: { c: { e: { g: true } } } }; const c = _.merge(a, b)
ramda deep merge
const a = { a: { c: { e: { h:4 }, f: 3 }, d: 2 }, b: 1 }; const b = { a: { c: { e: { g: true } } } }; const c = R.mergeDeepRight(a, b);
object spread deep merge
const a = { a: { c: { e: { h:4 }, f: 3 }, d: 2 }, b: 1 }; const b = { a: { c: { e: { g: true } } } }; const c = {...a, ...b, a: { ...a.a, ...b.b, c: { ...a.a.c, ...b.a.c, e: { ...a.a.c.e, ...b.a.c.e } } } };