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How to use async await and .then together with JavaScript?

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To use async await and .then together with JavaScript, we replace then with await.

For instance, we write

const f = async () => {
  try {
    const response = await fetch("http://no-such-url");
  } catch (err) {
    alert(err);
  }
};

to call fetch to return a promise with the response.

And we use await to get the response from the promise.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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