title: How to get response time of api request in react native?
body: <blockquote>
    <p>I want to get time difference between a request &amp; response. For example in below code what is time interval to complete the request ? </p>
  </blockquote>
  
  <pre><code>return fetch('https://facebook.github.io/react-native/movies.json')
  .then((response) =&gt; response.json())
  .then((responseJson) =&gt; {
     **# How much time above fetch request took ?**
    return responseJson.movies;
  })
  </code></pre>