shared/core-utils/miscs/miscs.ts

   1 // high excluded
   2 function randomInt (low: number, high: number) {
   3   return Math.floor(Math.random() * (high - low) + low)
   4 }
   5
   6 // Thanks https://stackoverflow.com/a/16187766
   7 function compareSemVer (a: string, b: string) {
   8   const regExStrip0 = /(\.0+)+$/
   9   const segmentsA = a.replace(regExStrip0, '').split('.')
  10   const segmentsB = b.replace(regExStrip0, '').split('.')
  11
  12   const l = Math.min(segmentsA.length, segmentsB.length)
  13
  14   for (let i = 0; i < l; i++) {
  15     const diff = parseInt(segmentsA[i], 10) - parseInt(segmentsB[i], 10)
  16
  17     if (diff) return diff
  18   }
  19
  20   return segmentsA.length - segmentsB.length
  21 }
  22
  23 function isPromise (value: any) {
  24   return value && typeof value.then === 'function'
  25 }
  26
  27 function isCatchable (value: any) {
  28   return value && typeof value.catch === 'function'
  29 }
  30
  31 export {
  32   randomInt,
  33   compareSemVer,
  34   isPromise,
  35   isCatchable
  36 }