Benchmark: Split vs Regex Iteration

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); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Splitting
Regex

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Latest run results:

Run details: (Test run date: 2 years ago)

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

Browser/OS: Firefox 91 on Ubuntu

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

Split vs Regex Iteration (version: 0)