Run results for: Regex vs split / join

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 15 days ago

Test name	Executions per second
Regex	11608416.0 Ops/sec
split \| join	7061745.0 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const genres = 'adventure, action, drama, entertainment, live, sports';

Tests:

Regex
const match = genres.match(/^[^,]*,[^,]*,[^,]*,/); const index = match ? match[0].length - 1 : -1; genres.substring(0, index).replaceAll(', ', ' \u2022 ');
split | join
genres.split(',').map((genre) => genre.trim()).filter(Boolean).slice(0, 3).join(' \u2022 ');