Benchmark: Split vs Substring + IndexOf

HTML Preparation code:

<div id='xx'></div>

Script Preparation code:

let email = 'TestUser2137@example.com';
let times = 1000;

Tests:

Split
let x = 0; while (x < times) { const userName = email.split('@')[0]; console.log(userName); x += 1; }
Substring
let x = 0; while (x < times) { const userName = email.substring(0, email.indexOf('@')); console.log(userName); x += 1; }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Split
Substring

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0

Browser/OS: Chrome 139 on Windows

Test name	Executions per second
Split	531.5 Ops/sec
Substring	533.3 Ops/sec

Related benchmarks:

Split vs Substring + IndexOf (version: 1)