Run results for: padStart vs while loop

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/119.0

Browser: Firefox 119

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

55.6M/s

37.9M/s

View exact numbers

Test name	Executions per second
✓ 1	55,593,932 Ops/sec
2	37,858,292 Ops/sec

Tests:

1
let stringValue = "9"; let zeroCount = 4 - stringValue.length; while (zeroCount-- > 0) { stringValue = '0' + stringValue; }
2
let stringValue = "9"; let zeroCount = 4 - stringValue.length; stringValue.padStart(4, "0");