context-type-inference

SKILL.md

Separating a value from its context can cause type errors.

TypeScript infers types based on both the value AND where it's used. When you extract a value to a variable, you lose context, which can cause surprising type errors.

Note: as const makes it readonly. If the function expects a mutable tuple, this won't work:

값을 추출하면 유형 오류가 발생할 때 사용합니다. 콜백 유형이 잘못된 경우 사용합니다. const 어설션이 필요할 때 사용합니다. 출처: marius-townhouse/effective-typescript-skills.

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