Run results for: arr unshift vs push + reverse (100 elements)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

unshift

5K/s

push + reverse

45/s

View exact numbers

Test name	Executions per second
✓ unshift	5,316 Ops/sec
push + reverse	45 Ops/sec

Script Preparation code:

var arr = [];

Tests: