Chap03 -> Implementing component state (Change getUnansweredQuestions to async function, result failure in transpiling)

QandA/frontend/src/QuestionsData.ts

@@ -48,6 +48,11 @@ const questions: QuestionData[] = [
   },
 ];
 
-export const getUnansweredQuestions = (): QuestionData[] => {
+export const getUnansweredQuestions = async(): Promise<QuestionData[]> => {
+  await wait(500);
   return questions.filter((q) => q.answers.length === 0);
 };
+
+const wait = (ms: number): Promise<void> => {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}