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by a_humean 1865 days ago
The tc39 pattern matching proposal seems to have some renewed energy with new champions (including from the typescript team) and syntax proposals:

https://github.com/tc39/proposal-pattern-matching

Also there has been movement in the user land space with libraries like ts-pattern that make use of new features in typescript 4.x to provide basically the full pattern matching experience:

https://github.com/gvergnaud/ts-pattern