Run results for: JS slice vs spread operator

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3.1 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 6 months ago

Benchmark engine: Benchmark.js

spread operator

87.0M/s

Array.prototype.slice

77.8M/s

View exact numbers

Test name	Executions per second
✓ spread operator	86,969,232 Ops/sec
Array.prototype.slice	77,807,936 Ops/sec

Tests:

Array.prototype.slice
const params = [ "hello", true, 7, { first: "first", second: "second" } ] const other = params.slice()
spread operator
const params = [ "hello", true, 7, { first: "first", second: "second" } ] const other = [ ...params ]