// Copy-pasted from:
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// https://github.com/substack/semver-compare/blob/master/index.js
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//
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// Inlining this function because some users reported issues with
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// importing from `semver-compare` in a browser with ES6 "native" modules.
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//
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// Fixes `semver-compare` not being able to compare versions with alpha/beta/etc "tags".
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// https://github.com/catamphetamine/libphonenumber-js/issues/381
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export default function(a, b) {
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a = a.split('-')
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b = b.split('-')
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var pa = a[0].split('.')
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var pb = b[0].split('.')
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for (var i = 0; i < 3; i++) {
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var na = Number(pa[i])
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var nb = Number(pb[i])
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if (na > nb) return 1
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if (nb > na) return -1
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if (!isNaN(na) && isNaN(nb)) return 1
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if (isNaN(na) && !isNaN(nb)) return -1
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}
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if (a[1] && b[1]) {
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return a[1] > b[1] ? 1 : (a[1] < b[1] ? -1 : 0)
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}
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return !a[1] && b[1] ? 1 : (a[1] && !b[1] ? -1 : 0)
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}
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