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TypeScript Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
hard
TypeScript
What does isolatedDeclarations (stable since TypeScript 5.5) require?
A
Nothing new — it's purely cosmetic
B
Every exported function/value to have an explicit type, so each file's .d.ts output can be generated by looking at that file alone, without full whole-program type-checking
C
All files to be combined into a single file
D
Removing all type annotations
Check Answer