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Can you explain what a React hook is?
Sure! React hooks are functions that let you use state and other React features in functional components.
Here's a simple example of the useState hook:
jsx1import React, { useState } from 'react'; 2 3function Counter() { 4 const [count, setCount] = useState(0); 5 6 return ( 7 <div> 8 <p>You clicked {count} times</p> 9 <button onClick={() => setCount(count + 1)}> 10 Click me 11 </button> 12 </div> 13 ); 14}
Popular React hooks include:
useState
: For managing stateuseEffect
: For side effectsuseContext
: For accessing contextuseRef
: For persistent mutable valuesYou can also create your own custom hooks to reuse stateful logic between components.
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