Run results for: lodash defaults vs spread

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 Edg/130.0.0.0

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

spread

24.8M/s

lodash merge

10.2M/s

View exact numbers

Test name	Executions per second
✓ spread	24,772,258 Ops/sec
lodash merge	10,163,727 Ops/sec

HTML Preparation code:

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

Tests:

lodash merge
var a = { a: 'oh', b: 'my', c: 'word' }; var b = { c: 'goddess' }; var c = _.defaults(a, b);
spread
var a = { a: 'oh', b: 'my', c: 'word' }; var b = { c: 'goddess' }; var c = { ...b, ...a };