Using Branded Types in TypeScript

You already know that in order to get more reliability and safety in your codebase you can use Typescript, but even with it there is room for improvement! One concept that can increase that reliability is Branded Types. They provide a way to create deeper specificity and uniqueness for modeling your data beyond that basic types primitives. In this article we’ll explore what branded types are, how

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``` declare const __brand: unique symbol type Brand<B> = { [__brand]: B } ``` を使った Branded Types