buttonClickConvention.jsx

class ContainerComponent extends React.Component{
  // excluding everything else
  
  handleButtonClick(){
    // stuff
  }
  
  render(){
    <PresentationalComponent onButtonClick={this.handleButtonCLick.bind(this)}
  }
}




const PresentationalComponent = (props) => {
  // excluding everything else
  <button type="button" onClick={props.onButtonClick}>Click me</button>
}