/Javascript/React/How to call api on load using hooks in react

How to call api on load using hooks in react

function User() {
  const [firstName, setFirstName] = React.useState(null);
  const [lastName, setLastName] = React.useState(null);
  
  React.useEffect(() => {
    fetch('https://randomuser.me/api/')
      .then(results => results.json())
      .then(data => {
        const {name} = data.results[0];
        setFirstName(name.first);
        setLastName(name.last);
      });
  }, []); // <-- Have to pass in [] here!

  return (
    <div>
      Name: {!firstName || !lastName ? 'Loading...' : `${firstName} ${lastName}`}
    </div>
  );
}

ReactDOM.render(<User />, document.querySelector('#app'));

Source: stackoverflow.com

Similar codes

27 votes287 views6 answers
React usestate
Javascript React
0 vote303 views2 answers
React js big calendar
Javascript React
6 votes309 views1 answer
React native rotate
Javascript React
3 votes326 views2 answers
Use font awsome in react
Javascript React
1 vote299 views1 answer
Forcechange input reactiveform
Javascript React
0 vote480 views1 answer
React-data-table-component cell action stack overflow
Javascript React
0 vote267 views2 answers
Hide header title in react navigation Drawer navigation
Javascript React
0 vote375 views1 answer
How to update state.item[1] in state using setState? React
Javascript React
0 vote306 views1 answer
Zeamster examples react node
Javascript React
0 vote297 views3 answers
Difference between React.functioncomponent and React.component
Javascript React