Run results for: What's faster unshifting left by 1 or multiplying by 2

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.3.1

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

left unshift

1.7M/s

times two

1.6M/s

View exact numbers

Test name	Executions per second
✓ left unshift	1,719,786 Ops/sec
times two	1,628,426 Ops/sec

Tests:

left unshift
console.log(34 << 1)
times two
console.log(34 * 2)

Run results for: What's faster unshifting left by 1 or multiplying by 2

Benchmark description

left unshift

times two