Want to use lifecycle methods with hooks in React? The React team has provided a useEffect hook for this purpose. Let’s take the component in your example and add server uploading for the count.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | import { useState, useEffect } from 'react'; function Example() { const [count, setCount] = useState(0); useEffect(() => { fetch( 'server/url', { headers: { 'Accept': 'application/json', 'Content-Type': 'application/json' }, body: JSON.stringify({count}), } ); }); return ( <div> <p>You clicked {count} times</p> <button onClick={() => setCount(count + 1)}> Click me </button> </div> ); } |
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