a = Array(10000);
b = Array(300)
a.splice(0, b.length, ...b);
for (let i = 0; i < b.length; i++) {
a[i] = b[i];
}
FAQ: FAQ
Source code: GitHub/MeasureThat.net
Report issues: MeasureThat.net/Issues
Based on: Benchmark.js
Facebook page: https://www.facebook.com/MeasureThat.Net
Python benchmarks support: Pyodide