FEAT: add three alternative functions

ahme-dev · May 20, 2023 · 8faf2a0 · 8faf2a0
1 parent 1924bd4
commit 8faf2a0
Showing 1 changed file with 23 additions and 0 deletions.
diff --git a/src/alternative.ts b/src/alternative.ts
@@ -0,0 +1,23 @@
+type Result<T> = T | Error;
+
+export function isError<T>(possibleErr: Result<T>): possibleErr is Error {
+	return possibleErr instanceof Error;
+}
+
+export async function tryAsync<T>(promise: Promise<T>): Promise<Result<T>> {
+	try {
+		const ok = await promise;
+		return ok;
+	} catch (err) {
+		return err as Error;
+	}
+}
+
+export function trySync<T>(func: () => T): Result<T> {
+	try {
+		const ok = func();
+		return ok;
+	} catch (err) {
+		return err as Error;
+	}
+}