Check the impact between the two
Is it faster to make a number negative by multiplying by negative one, og subtract the number from zero.
Compare the new ES6 spread operator with the traditional concat() method
Check if an object is undefined
Create Your benchmarks
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