Sha256: 431e82902f7604755ba826f922866ea63d245986136ac520fa3cb882a8c34fdd
Contents?: true
Size: 634 Bytes
Versions: 42
Compression:
Stored size: 634 Bytes
Contents
const parse = require('./parse')
const eq = require('./eq')
const diff = (version1, version2) => {
if (eq(version1, version2)) {
return null
} else {
const v1 = parse(version1)
const v2 = parse(version2)
const hasPre = v1.prerelease.length || v2.prerelease.length
const prefix = hasPre ? 'pre' : ''
const defaultResult = hasPre ? 'prerelease' : ''
for (const key in v1) {
if (key === 'major' || key === 'minor' || key === 'patch') {
if (v1[key] !== v2[key]) {
return prefix + key
}
}
}
return defaultResult // may be undefined
}
}
module.exports = diff
Version data entries
42 entries across 35 versions & 4 rubygems