remove component react js

1class Child extends React.Component {
2    constructor(){}
3    dismiss() {
4        this.props.unmountMe();
5    } 
6    render(){
7        // code
8    }
9}
10
11class Parent ...
12    constructor(){
13        super(props)
14        this.state = {renderChild: true};
15        this.handleChildUnmount = this.handleChildUnmount.bind(this);
16    }
17    handleChildUnmount(){
18        this.setState({renderChild: false});
19    }
20    render(){
21        // code
22        {this.state.renderChild ? <Child unmountMe={this.handleChildUnmount} /> : null}
23    }
24
25}
26