Run results for: Array spread operator vs push, large list

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 OPR/131.0.0.0

Browser: Opera 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 months ago

Benchmark engine: Benchmark.js

push

5.1M/s

spread

196K/s

View exact numbers

Test name	Executions per second
✓ push	5,084,592 Ops/sec
spread	196,074 Ops/sec

Script Preparation code:

window.startArray = [];
for (let i = 0; i < 100; i++) {
  startArray.push("El-" + i);
}

Tests:

spread
startArray.reduce((accumulator, currentValue) => { return [...accumulator, currentValue]; }, []);
push
startArray.reduce((accumulator, currentValue) => { accumulator.push(currentValue); return accumulator; }, []);