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Type Signature · #28 · 2026-05-02

What is the type of property `x` in type `A`?

TypeScript ·Difficulty 3/3

How to play

Read the TypeScript snippet and pick the correct type from four choices. Think about inference, narrowing, and utility types. Press 1–4 or click to answer.

type A = { x: string } & { x: number };

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Press 1 through 4, or tap a numbered choice, to answer. Back to hub