var arr = new Array(10000).fill(0).map(() => Math.random() * 10);
arr.map(n => n >> 1);
arr.map(n => Math.floor(n / 2));
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