Can a new record be created by adding keys and values to an existing record type while also changing the key names?

If I have the following state type,

type State = {
  currentPartnerId: number;
  currentTime: string;
};

I am looking to create a new type with keys like getCurrentPartnerId and values that are functions returning the corresponding key's value in State.

For example:

type NewType = {
  getCurrentParternerId: () => number;
  getCurrentTime: () => string;
}

I attempted the following approach:

type Dict<T extends keyof State> = { [key in `get${Capitalize<T>}`]: () => State[T] }

However, this method requires providing a type argument which is something I would like to avoid...

Answer №1

Almost there, keep going.

type Dictionary = { [index in keyof Collection as `fetch${Capitalize<index>}`]: () => Collection[index] }

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