import React, { Component } from 'react' /* First we will make a new context */ const CounterContext = React.createContext() /* Then create a provider Component */ class CounterProvider extends Component { state = { count: 0 } increase = () => { this.setState({ count: this.state.count + 1 }) } decrease = () => { this.setState({ count: this.state.count - 1 }) } render () { return ( {this.props.children} ) } } /* then make a consumer which will surface it */ const CounterConsumer = CounterContext.Consumer export default CounterProvider export { CounterConsumer }