var a = new Intl.NumberFormat("en-US").format("10000");
var a = "10000".toLocaleString("en-US");
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