branded-types

SKILL.md

TypeScript uses structural typing, but sometimes you need nominal typing - values that are distinct because you SAY they are, not because they have different shapes. Brands let you do this without runtime overhead.

You can't actually create a value that is both a string and has a brand property:

Response: Type aliases don't prevent mixing up different string types.

当原始类型需要语义区分时使用。当字符串或数字类型具有不同含义时使用。当您需要名义输入时使用。 来源：marius-townhouse/effective-typescript-skills。

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