Control.rb

require 'benchmark'

%x(rm output.csv)

file = File.open('output.csv', 'a')
file.puts("N,DoWhile,ForEach,ForOf,ForLoop,While")
file.close

10000.times{ |i|
   file = File.open('output.csv', 'a')

   time = Benchmark.measure {
      %x(node dowhile.js)
   }
   output = (i + 1).to_s + "," + time.real.to_s

   time = Benchmark.measure {
      %x(node foreach.js)
   }
   output = output + "," + time.real.to_s

   time = Benchmark.measure {
      %x(node forof.js)
   }
   output = output + "," + time.real.to_s

   time = Benchmark.measure {
      %x(node forloop.js)
   }
   output = output + "," + time.real.to_s

   time = Benchmark.measure {
      %x(node while.js)
   }
   output = output + "," + time.real.to_s

   file.puts(output)

   file.close
}

dowhile.js

var arr = new Array(1000)
for(var i = 0; i < arr.length; i++){
   arr[i] = i
}

var sum = 0
var i = 0
do {
   sum += arr[i] * 2
   i++
} while ( i < arr.length )
console.log("SUM: " + sum);

foreach.js

var arr = new Array(1000)
for(var i = 0; i < arr.length; i++){
   arr[i] = i
}

var sum = 0
arr.forEach(i => {
   sum += i * 2
})

console.log("SUM: " + sum);

forloop.js

var arr = new Array(1000)
for(var i = 0; i < arr.length; i++){
   arr[i] = i
}

var sum = 0
for(var i = 0; i < arr.length; i++){
   sum += arr[i] * 2
}
console.log("SUM: " + sum);

forof.js

var arr = new Array(1000)
for(var i = 0; i < arr.length; i++){
   arr[i] = i
}

var sum = 0
for(var i of arr){
   sum += i * 2
}
console.log("SUM: " + sum);

while.js

var arr = new Array(1000)
for(var i = 0; i < arr.length; i++){
   arr[i] = i
}

var sum = 0
var i = 0
while (i < arr.length) {
   sum += arr[i] * 2
   i++
}
console.log("SUM: " + sum);