max.mjs

   1 import { bench, group, run } from 'tatami-ng'
   2
   3 import { generateRandomNumberArray } from './benchmark-utils.mjs'
   4
   5 const size = 10000
   6 const testArray = generateRandomNumberArray(size)
   7
   8 /**
   9  *
  10  * @param values
  11  * @returns
  12  */
  13 function loopMax (values) {
  14   let maximum = -Infinity
  15   for (const value of values) {
  16     if (value > maximum) maximum = value
  17   }
  18   return maximum
  19 }
  20
  21 /**
  22  *
  23  * @param values
  24  * @returns
  25  */
  26 function reduceTernaryMax (values) {
  27   return values.reduce(
  28     (maximum, num) => (maximum > num ? maximum : num),
  29     -Infinity
  30   )
  31 }
  32
  33 /**
  34  *
  35  * @param values
  36  * @returns
  37  */
  38 function reduceMathMax (values) {
  39   return values.reduce((maximum, num) => Math.max(maximum, num), -Infinity)
  40 }
  41
  42 /**
  43  *
  44  * @param values
  45  * @returns
  46  */
  47 function sortMax (values) {
  48   return values.sort((a, b) => b - a)[0]
  49 }
  50
  51 group(`Max from ${size} numbers`, () => {
  52   bench('Math.max', () => {
  53     Math.max(...testArray)
  54   })
  55   bench('loopMax', () => {
  56     loopMax(testArray)
  57   })
  58   bench('reduceTernaryMax', () => {
  59     reduceTernaryMax(testArray)
  60   })
  61   bench('reduceMathMax', () => {
  62     reduceMathMax(testArray)
  63   })
  64   bench('sortMax', () => {
  65     sortMax(testArray)
  66   })
  67 })
  68
  69 await run({
  70   units: true
  71 })