Run results for: test regex vs loop

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Browser: Chrome 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
regex	120796.7 Ops/sec
loop	45505.3 Ops/sec

Tests:

regex
const regex = /(00|11|22|33|44|55|66|77|88|99)/; let num = 3298; num = num + 1; let aux = (num).toString(); while (regex.test(aux)) { num += 1; aux = num.toString(); }
loop
let num = 3298; const consecutiveChars = function(num) { const arr = num.toString().split(''); for (let idx = 0; idx < arr.length - 1; idx++) { if (arr[idx] == arr[idx + 1]) return true; } return false; } num = num + 1; while (consecutiveChars(num)) { num++; }