Is there a way to use "advanced/nested" type variables, similar to how T is utilized in this function declaration, when working with arrow functions?
function wrapInObject<T>(key: string) {
return (x: T) => ({ [key]: x });
}
I attempted to achieve something like this, but it did not produce the desired result.
const wrapInObject = <T>(key: string) => (x: T) => ({ [key]: x });
One issue pointed out in the feedback is that the error occurs when the generic arrow function is written in a tsx file. In ts, the syntax mentioned in the question functions correctly.
This limitation with generics in tsx files arises from the ambiguities in the syntax, as detailed here. The suggestion provided in the reference is to add a type constraint to T:
const wrapInObject = <T extends {}>(key: string) => (x: T) => ({ [key]: x });
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