Simple benchmarking

benchamrking.js

const benchmark = (func, input, iterations) => {
  const start = performance.now()
  for (let i = 0; i < iterations; i++) {
    func(...input)
  }
  const finish = performance.now()
  const time = finish - start
  return { 
    time,
    aproxOperation: (time/iterations)
  }
}

function summary(a,b) {
  return Math.sqrt(a*b)
}

benchmark(summary, [2,3], 10000)