TypeScript `Exclude` and `Extract` in Depth: Filtering Union Types for Real API

<p>I've been writing TypeScript for a few years now across React Native, Node.js, and a bunch of different product types. And there's a gap between what the docs teach you and

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<p>You've definitely come across this debate more than once: <em>type or interface?</em> Most answers online boil down to "it depends" or "use interface for objects, type for