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.

기본 유형에 의미적 구별이 필요할 때 사용합니다. 문자열이나 숫자 유형이 다른 의미를 가질 때 사용합니다. 명목상 타이핑이 필요할 때 사용하세요. 출처: marius-townhouse/effective-typescript-skills.

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