import React, { Component } from 'react';
import TodoItem from './TodoItem'
import Data from './Data'





class App extends Component{

constructor(){
    super()
          this.state = {
          count:0
  }
  this.okay = this.okay.bind(this)
}

okay(){

this.setState (prevState => {

return {
  count: prevState.count + 1
}

})
}


  render(){

        return(
          <div>
              <h1> {this.state.count}</h1>
              <button onClick = {this.okay}> change </button>
          </div>
              )}
            }

export default App;