shared/core-utils/miscs/miscs.ts


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

// high excluded
function randomInt (low: number, high: number) {
  return Math.floor(Math.random() * (high - low) + low)
}

// Thanks https://stackoverflow.com/a/16187766
function compareSemVer (a: string, b: string) {
  const regExStrip0 = /(\.0+)+$/
  const segmentsA = a.replace(regExStrip0, '').split('.')
  const segmentsB = b.replace(regExStrip0, '').split('.')

  const l = Math.min(segmentsA.length, segmentsB.length)

  for (let i = 0; i < l; i++) {
    const diff = parseInt(segmentsA[i], 10) - parseInt(segmentsB[i], 10)

    if (diff) return diff
  }

  return segmentsA.length - segmentsB.length
}

function isPromise (value: any) {
  return value && typeof value.then === 'function'
}

function isCatchable (value: any) {
  return value && typeof value.catch === 'function'
}

export {
  randomInt,
  compareSemVer,
  isPromise,
  isCatchable
}