use setstate in function component
const App = () => {
const [state, setState] = React.useState({ first: "hello", second: "world" });
return (
<div>
<input type="text" value={state.first} onChange={(ev) => setState({...state, first: ev.target.value})} />
<input type="text" value={state.second} onChange={(ev) => setState({...state, second: ev.target.value})} />
</div>
)
}
ReactDOM.render(<App />, document.getElementById('app'))state with react functions
class Example extends React.Component {
constructor(props) {
super(props);
this.state = {
count: 0
};
}
render() {
return (
<div>
<p>You clicked {this.state.count} times</p>
<button onClick={() => this.setState({ count: this.state.count + 1 })}>
Click me
</button>
</div>
);
}
}Copyright © 2021 Codeinu
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