tryCatch.ts

type Result<T, E = Error> = [T, null] | [null, E];

export async function tryCatch<T, E = Error>(
  promise: PromiseLike<T> | (() => PromiseLike<T>)
): Promise<Result<T, E>> {
  try {
    const data = await (typeof promise === 'function' ? promise() : promise);
    return [data, null];
  } catch (error) {
    return [null, error as E];
  }
}