Run results for: leftPadtest

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

leftpad2

687.6M/s

leftpad1

680.6M/s

primeagen

677.7M/s

View exact numbers

Tests:

leftpad1
function leftpad1(str, len, ch){ return (ch + str).slice(-len) }
leftpad2
function leftpad0(str, len, ch) { str = String(str); var i = -1; if (!ch && ch !== 0) ch = " "; len = len - str.length; while (++i < len) { str = ch + str; } return str; }
primeagen
function leftpad3(str, len, ch) { return new Array(len - str.length).join(!ch && ch !== 0 ? " " : ch) + str; }