Run results for: Split vs Regex Iteration

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Splitting	4362.2 Ops/sec
Regex	3232.0 Ops/sec

Script Preparation code:

var testString = new Array(1000).fill(0).map(() => Math.random().toFixed(4)).join("\n");

Tests:

Splitting
testString.split("\n").forEach(v => { const f = parseFloat(v); if (!window.screen) console.log(f); });
Regex
var regex = /([^\n]+)\n/g while (true) { const match = regex.exec(testString); if (!match) break; const f = parseFloat(match[1]); if (!window.screen) console.log(f); }