Has there been any previous discussion of adding the `x` flag to JS? It exists in other languages, and can make relatively complicated regex _much_ easier to read. It also allows for comments, which are incredibly helpful when trying to understand some regexes.
For prior art, XRegExp has this flag (though I've no idea to figure out how frequently it's used), as do a few other languages. Quick overview: https://www.regular-expressions.info/freespacing.html Language references: Python: https://docs.python.org/3/library/re.html#re.X Rust: https://docs.rs/regex/1.1.6/regex/ XRegExp: http://xregexp.com/xregexp/flags/#extended .NET: https://docs.microsoft.com/en-us/dotnet/standard/base-types/regular-expression-language-quick-reference#regular-expression-options Jacob Pratt
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