Fixed error handling when error is unknown

lwkchan · May 24, 2022 · 7f8bd9f · 7f8bd9f
1 parent 1291354
commit 7f8bd9f
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/src/utils.ts b/src/utils.ts
@@ -4,10 +4,14 @@ export enum ErrorType {
   INVALID_JS_OBJECT,
 }
 
-export function handleError(error: Error, errorType: ErrorType): void {
-  let messageToDisplay = '';
+function isError(maybeError: Error | unknown): maybeError is Error {
+  return maybeError !== null && typeof maybeError === 'object';
+}
+
+export function handleError(error: Error | unknown, errorType: ErrorType): void {
+  let messageToDisplay = 'Something went wrong';
 
-  if (errorType === ErrorType.INVALID_JS_OBJECT) {
+  if (errorType === ErrorType.INVALID_JS_OBJECT && isError(error)) {
     messageToDisplay = `Invalid JavaScript object: ${error.message}`;
   }