feat: add helper for emptyOk and emptyErr

SvenKube · Sep 3, 2019 · d617bae · d617bae
1 parent 05e43a6
commit d617bae
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Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -60,6 +60,9 @@ console.log(result.xor(result2)); // => Some(42)
 export const ok = <T, E>(value: T): Result<T, E> => new Ok(value);
 export const err = <T, E>(error: E): Result<T, E> => new Err(error);
 
+export const emptyOk = <E>(): Result<void, E> => new Ok(undefined);
+export const emptyErr = <T>(): Result<T, void> => new Err(undefined);
+
 export const some = <T>(value: T): Option<T> => new Some(value);
 export const none = <T>(): Option<T> => new None();
 ```

diff --git a/src/result.ts b/src/result.ts
@@ -1,5 +1,8 @@
 import {Option, some, none} from "./option";
 
+export const emptyOk = <E>(): Result<void, E> => new Ok(undefined);
+export const emptyErr = <T>(): Result<T, void> => new Err(undefined);
+
 export const ok = <T, E>(value: T): Result<T, E> => new Ok(value);
 export const err = <T, E>(error: E): Result<T, E> => new Err(error);