Run results for: arr unshift vs reverse + push + reverse (small array)

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

unshift

1K/s

reverse + push + reverse

65/s

View exact numbers

Test name	Executions per second
✓ unshift	1,437 Ops/sec
reverse + push + reverse	65 Ops/sec

Script Preparation code:

var arr = [10];

Tests:

unshift
for (let i = 0; i < 10; i++){ arr.unshift(i); }
reverse + push + reverse
for (let i = 0; i < 10; i++){ arr.reverse(); arr.push(i); arr.reverse(); }