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Run results for:
object concat vs spread
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=485753" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Browser:
Chrome 119
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
concat 5000
14K/s
spread 5000
10K/s
concat 10000
5K/s
spread 100000
2K/s
View exact numbers
Test name
Executions per second
✓
concat 5000
13,725 Ops/sec
spread 5000
10,472 Ops/sec
concat 10000
4,830 Ops/sec
spread 100000
2,423 Ops/sec
Tests:
concat 10000
const data1 = [...Array.from(Array(10000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const data2 = [...Array.from(Array(10000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const concatTest = () => { const result = data1.concat(data2) } concatTest();
spread 100000
const data1 = [...Array.from(Array(10000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const data2 = [...Array.from(Array(10000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const spreadTest = () => { const result = [...data1, ...data2] } spreadTest();
concat 5000
const data1 = [...Array.from(Array(5000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const data2 = [...Array.from(Array(5000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const concatTest = () => { const result = data1.concat(data2) } concatTest();
spread 5000
const data1 = [...Array.from(Array(5000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const data2 = [...Array.from(Array(5000))].map(_ => ({ a: 123, b: '123', c: [1,2,3]})); const spreadTest = () => { const result = [...data1, ...data2] } spreadTest();