+// 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
+ randomInt,
+ compareSemVer,
+ isPromise,
+ isCatchable
}