“Pesquise para inserir o React Key” Respostas de código

Pesquise para inserir o React Key

class CartridgeShell extends React.Component {

   constructor(props) {
      super(props);
      this.state = {value:''}

      this.handleChange = this.handleChange.bind(this);
      this.keyPress = this.keyPress.bind(this);
   } 
 
   handleChange(e) {
      this.setState({ value: e.target.value });
   }

   keyPress(e){
      if(e.keyCode == 13){
         console.log('value', e.target.value);
         // put the login here
      }
   }

   render(){
      return(
         <input value={this.state.value} onKeyDown={this.keyPress} onChange={this.handleChange} fullWidth={true} />
      )
    }
}

ReactDOM.render(<CartridgeShell/>, document.getElementById('app'))
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>