react state array
setTheArray(oldArray => [...oldArray, newElement]);react state array
setTheArray(oldArray => [...oldArray, newElement]);how to add array data on state react
this.setState({ myArray: [...this.state.myArray, 'new value'] }) //simple value
this.setState({ myArray: [...this.state.myArray, ...[1,2,3] ] }) //another arraystate react
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>
);
}
}react state
const [stateName, SetStateName] = useState();
SetStateName('any name');Copyright © 2021 Codeinu
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