var arr = Array.from(Array(1000).keys())
var brr = [...arr]
var drr = []
var err = []
arr.forEach(item => {
drr.push(item)
})
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