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 = Number.NEGATIVE_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     Number.NEGATIVE_INFINITY
  30   )
  31 }
  32
  33 /**
  34  *
  35  * @param values
  36  * @returns
  37  */
  38 function reduceMathMax (values) {
  39   return values.reduce(
  40     (maximum, num) => Math.max(maximum, num),
  41     Number.NEGATIVE_INFINITY
  42   )
  43 }
  44
  45 /**
  46  *
  47  * @param values
  48  * @returns
  49  */
  50 function sortMax (values) {
  51   return values.sort((a, b) => b - a)[0]
  52 }
  53
  54 group(`Max from ${size} numbers`, () => {
  55   bench('Math.max', () => {
  56     Math.max(...testArray)
  57   })
  58   bench('loopMax', () => {
  59     loopMax(testArray)
  60   })
  61   bench('reduceTernaryMax', () => {
  62     reduceTernaryMax(testArray)
  63   })
  64   bench('reduceMathMax', () => {
  65     reduceMathMax(testArray)
  66   })
  67   bench('sortMax', () => {
  68     sortMax(testArray)
  69   })
  70 })
  71
  72 await run({
  73   units: true,
  74 })