BindFunctionExample.js

export default class BindFunctionExample extends React.Component {
	constructor() {
		super();
		this.state = {
			hidden: true,
		};
		this.toggleHidden = this.toggleHidden.bind(this);
	}
	
	toggleHidden() {
    		const hidden = !this.state.hidden;
    		this.setState({hidden})
	}
	render(){
		return(
			<button onClick={this.toggleHidden} />
		);
	}
	
}