fix(common): return undefined if string type value is undefined

nestjs · Nov 28, 2024 · 6563c18 · 6563c18
1 parent a071a73
commit 6563c18
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/packages/common/pipes/validation.pipe.ts b/packages/common/pipes/validation.pipe.ts
@@ -207,6 +207,9 @@ export class ValidationPipe implements PipeTransform<any> {
       return +value;
     }
     if (metatype === String) {
+      if (isUndefined(value)) {
+        return undefined;
+      }
       return String(value);
     }
     return value;