import React, { Component }   from 'react';
import ReactDOM               from 'react-dom';
import IntersectionVisible    from 'react-intersection-visible';
 
class YourComponent extends Component
{
 
    onHide( entries )
    {
        // do something
    }
 
    onShow( entries )
    {
        // do something
    }
 
    onIntersect( entries )
    {
        // do something
    }
 
    render(){
        return (<IntersectionVisible onIntersect={ e => this.onIntersect( e ) }
                                     onHide={ e => this.onHide( e ) }
                                     onShow={ e => this.onShow( e ) }>
                    <div>
                        blah blah blah  blah blah blah  blah blah blah  blah blah
                          blah blah blah  blah blah blah  blah blah blah
                    </div>
                </IntersectionVisible>);
    }
}