Determining the specific type of a value returned by a ReturnType

Is there a more efficient way to access the value type of a return type of a function without creating unused variables?

const f = () => ({ a: 'a', b: 0 });
let atype: ReturnType<typeof f>.a;
let btype: ReturnType<typeof f>.b;

Any cleaner solution available for this?

Answer №1

If you need to access specific types in TypeScript, consider using an indexed access type:

ReturnType<typeof function>['x']; // string
ReturnType<typeof function>['y']; // number

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