The regex library of matching characters has been growing in Javascript for a while. The Mozilla MDN for RegExp has a breakdown of what is supported, which may be well beyond what most people expect.

match ()の引数にそれが渡せるのは便利ですね。 半角ハテナは、正規表現では「直前のパターンの0～1回の繰り返し」を表す意味をもつ記号である 正規表現ではたとえば、「0*」と書くと「数字のゼロの、0回以上の任意の回数の繰り返し」を示します。

A simple npm package that checks the password strength of a certain passphrase. A password strength checker based from Javascript RegEx. This repository contains regular expression (regex) patterns ...

Google Analytics 4 enhances filters with new match types like regex for more customizable, precise data segmentation.