ASP.NET Core 3 and React

Changing getUnansweredQuestions so that it's asynchronous

The getUnansweredQuestions function doesn't simulate a web API call very well because it isn't asynchronous. In this section, we'll change this. Follow these steps to do so:

1. Open QuestionsData.ts and create an asynchronous wait function that we can use in our getUnansweredQuestions function:

const wait = (ms: number): Promise<void> => { return new Promise(resolve => setTimeout(resolve, ms));};

This function will wait asynchronously for the number of milliseconds we pass into it. The function uses the native JavaScript setTimeout function internally, so that it returns after the specified number of milliseconds.

Notice the function returns a Promise object.

A promise is a JavaScript ...