Run results for: [].concat vs [...]

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 SberBrowser/19.0.0.0

Browser: Chrome 127

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

[...]

9.1M/s

[].concat

2.7M/s

View exact numbers

Test name	Executions per second
✓ [...]	9,098,901 Ops/sec
[].concat	2,719,216 Ops/sec

Tests:

[].concat
const a = [1,2,3] const b = [4,5,6] const c = [7,8,9] const d = [].concat(a,b,c)
[...]
const a = [1,2,3] const b = [4,5,6] const c = [7,8,9] const d = [...a,...b,...c]

Run results for: [].concat vs [...]

Compare the new ES6 spread operator with the traditional concat() method

[].concat

[...]