Run results for: Split vs Regex Iteration

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36

Browser: Chrome 93

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Splitting	2106.5 Ops/sec
Regex	1753.0 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); }