steps for correctly deleting a property from an object in TypeScript

I usually use this generic function to delete a key from an object, but I'm open to better solutions if anyone has one:

const removeKeyFromObject = <T extends {}, K extends keyof T>(data: T, key: K) => {
  const updatedData: any = { ...data };
  delete updatedData[key];

  return updatedData as Omit<T, K>;
}

Answer №1

Here is an improved method:

function removeKeyFromObject<T extends {}, K extends keyof T>(data: T, key: K): Omit<T, K> {
  const { [key]: _, ...result } = data;
  return result;
}

The type of result is accurately inferred as Omit<T, K>.

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