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leviem1/match-pessimistic-version.js

Created May 12, 2021 23:32
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Pessimistically match a version in a string
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match-pessimistic-version.js
/*
Pessimistically match a version string (e.g. 1.2.3) in string.
Works with https://tc39.es/ecma262/ (2018).
Pessimistic versioning:
https://web.archive.org/web/20201027204727/https://macwright.com/2016/08/23/optimistic-pessimistic-versioning.html
https://web.archive.org/web/20210331060738/https://thoughtbot.com/blog/rubys-pessimistic-operator
*/
function pessimisticMatch(string, version) {
return new RegExp(`(?<!(\\.|[0-9]))${version}(\\.[0-9]*)*(?!.+)`).test(string);
}
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