The Complete React Native Hooks Course -

import React, useState from 'react'; import View, Text, Button, TextInput from 'react-native'; export default function UserInput() const [name, setName] = useState(''); const [submitted, setSubmitted] = useState(false);

State persists across re-renders; updating state triggers a re-render. 2. useEffect – Handling Side Effects Goal: Replace lifecycle methods ( componentDidMount , componentDidUpdate , componentWillUnmount ). The Complete React Native Hooks Course

return <TextInput ref=inputRef placeholder="Auto-focused" />; import React, useState from 'react'; import View, Text,

// useCallback: memoizes the function itself const handlePress = useCallback(() => console.log('Button pressed', count); , [count]); // Re-create only when count changes // useMemo: memoizes the result of a computation const expensiveValue = useMemo(() => return heavyComputation(data); , [data]); const addTodo = (text) =&gt

For complex state, combine with useReducer . Part 2: Additional Built-in Hooks 4. useReducer – Complex State Logic Goal: Manage state with reducers (predictable state updates).

const addTodo = (text) => dispatch(addTodoAction(text));

Use these with React.memo to skip re-rendering child components. 6. useRef – Mutable References & DOM Access Goal: Store mutable values (don't trigger re-renders) or access native elements.