Merge pull request #9873 from storybookjs/9827-ts-default-values

Props: Fix typescript unspecified default value

addons/docs/src/frameworks/react/typeScript/handleProp.ts

@@ -24,5 +24,5 @@ export function enhanceTypeScriptProp(extractedProp: ExtractedProp, rawDefaultPr
 }
 
 export function enhanceTypeScriptProps(extractedProps: ExtractedProp[]): PropDef[] {
-  return extractedProps.map(enhanceTypeScriptProp);
+  return extractedProps.map(prop => enhanceTypeScriptProp(prop));
 }