fix assertIsDefined

evanlouie · Dec 26, 2021 · 8d4073e · 8d4073e
1 parent 869d0b8
commit 8d4073e
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/src/index.ts b/src/index.ts
@@ -362,16 +362,17 @@ export function assertIsNotUndefined(
  * @param additionalMessage  further information on failure
  * @throws {Error}
  */
-export function assertIsDefined(
-  value: unknown,
+export function assertIsDefined<T>(
+  value: T,
   variableName?: string,
   additionalMessage?: string
-): asserts value is NonNullable<any> {
+): asserts value is NonNullable<T> {
   assert(
     isDefined(value),
     AssertionMessage(value, "defined", variableName, additionalMessage)
   );
 }
+
 /**
  * General assertion helper. Asserts the provided `condition` is met, if it is
  * not, throws an Error with the provided `message`