Skip to content

Instantly share code, notes, and snippets.

@weisisheng
Forked from t3dotgg/try-catch.ts
Created March 31, 2025 11:11
Show Gist options
  • Save weisisheng/ad20ed01398bac59b9e4c8404c0aca56 to your computer and use it in GitHub Desktop.
Save weisisheng/ad20ed01398bac59b9e4c8404c0aca56 to your computer and use it in GitHub Desktop.
Theo's preferred way of handling try/catch in TypeScript
// Types for the result object with discriminated union
type Success<T> = {
data: T;
error: null;
};
type Failure<E> = {
data: null;
error: E;
};
type Result<T, E = Error> = Success<T> | Failure<E>;
// Main wrapper function
export async function tryCatch<T, E = Error>(
promise: Promise<T>,
): Promise<Result<T, E>> {
try {
const data = await promise;
return { data, error: null };
} catch (error) {
return { data: null, error: error as E };
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment