If you want to know how to update parent’s state in React JS, then use the following example to update parent’s state in React.
For child-parent communication you should pass a function setting the state from parent to child, like this
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | class Parent extends React.Component { constructor(props) { super(props) this.handler = this.handler.bind(this) } handler() { this.setState({ someVar: 'some value' }) } render() { return <Child handler = {this.handler} /> } } class Child extends React.Component { render() { return <Button onClick = {this.props.handler}/ > } } |
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