await tryCatch

try-catch.ts

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

/**
 * A utility function that wraps a promise and returns a tuple.
 * The first element of the tuple is the resolved value or null,
 * and the second element is the error or null.
 *
 * @param promise - The promise to wrap.
 * @returns A tuple where the first element is the resolved value or null,
 * and the second element is the error or null.
 * @example
 * const [result, error] = await tryCatch(fetchData());
 * if (error) return console.error('Error fetching data:', error);
 * console.log('Fetched data:', result);
 * @template T - The type of the resolved value.
 * @template E - The type of the error.
 */
export async function tryCatch<T, E = Error>(
  promise: Promise<T>,
): Promise<Result<T, E>> {  
  try {
    const result = await promise;
    return [result, null];
  } catch (error) {
    return [null, error];
  }
}