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Comment charger es6, réagir, code babel en html avec cdn?

J'ai Codepen code que je tente de répliquer sur une page Web en utilisant seulement trois fichiers, index.html, main.js et style.css. J'ai essayé de charger ces scripts sur la balise head du fichier HTML.

<script src="https://npmcdn.com/[email protected]/dist/btib.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/0.14.7/react.min.js"></script>

Cependant, ça ne marche pas. Tout ce que j'ai c'est cette erreur

Uncaught SyntaxError: Unexpected token <

quels sont les fichiers de script CDN nécessaires pour charger ce code de réaction au format HTML?

javascriptreactjsbabeljs
5
anoop chandran

Vous devez utiliser le script babel standalone pour transcompiler le code, et vous devez inclure le script pour react and react-dom, utilisez ce qui suit:

<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.24.0/babel.js"></script>
<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>

Raison pour laquelle il fonctionne avec codepen: vérifiez le paramètre/javascript, vous constaterez que babel est sélectionné comme Préprocesseur JavaScript , codepen inclut le script automatiquement, mais pour exécuter ces fichiers localement, inclure le standalone script.

Mettre à jour:

1- Vous devez définir le script après la div dans laquelle vous rendez le code de réaction, sinon l'erreur sera renvoyée. comme ça:

<body> 
   <div id="root"></div> 
   <script type="text/babel" src="pomodoro.js"></script>
</body>

2- Utilisez ReactDOM.render au lieu de React.render.

Vérifiez le code de travail:

<html>

<head>
<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>
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.24.0/babel.js"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js'></script>
</head>
<body>
   <div id='root'></div>
   <script type='text/babel'>
       class SetTimer extends React.Component{    
  render(){
    return (   
      <div className="set-timer">work <br/> session         
          <div className="minus-add">
            <button className="setting-button" id="minus-timer" onClick={this.props.minus}>-</button>
            <button className="setting-button" id="add-timer" onClick={this.props.add}>+</button>
          </div>
      </div>
    );
  }
} 

class SetBreak extends React.Component{
  
  render(){
    return (   
      <div className="set-break"> break<br/> session 
          <div className="minus-add">
            <button className="setting-button" id="minus-break" onClick={this.props.minusbreak}>-</button>
            <button className="setting-button" id="add-break" onClick={this.props.addbreak}>+</button>
          </div>
      </div>
    );
  }
} 

const leftPad = (time)=>{
  return (time<10)? '0'+time :time
}
const TimerDisplay = (props) => (   
  <div className="timer-display"><span className="worklabel">Work session time</span><br/>
      {props.currentTime}
      <div className="breaktime"><span className="breaklabel">break session time</span><br/>{props.breakTime}</div>
    </div>
);
// let baseTime= 25;
class App extends React.Component {
  constructor(){
    super();
    this.state = {
      baseTime:25,
      breakTime:5,
      currentTime: moment.duration(25,'minutes'),
      timer:null,
      startbuttonvisible:true,
      pausebuttonvisible:false,
      resumebuttonvisible:false,
      stopbuttonvisible:false,
    }
    this.minus =this.minus.bind(this);
    this.add =this.add.bind(this);
    this.minusbreak =this.minusbreak.bind(this);
    this.addbreak =this.addbreak.bind(this);
    this.startTimer = this.startTimer.bind(this);
    this.pauseTimer = this.pauseTimer.bind(this);
    this.resumeTimer = this.resumeTimer.bind(this);
    this.stopTimer = this.stopTimer.bind(this);
    this.reduceTimer = this.reduceTimer.bind(this);
    
  }
  add(){
    this.setState({
      baseTime:this.state.baseTime+1
    });
  }
  minus(){
    this.setState({
      baseTime:this.state.baseTime-1
    });
  }
  addbreak(){
    this.setState({
      breakTime:this.state.breakTime+1
    });
  }
  minusbreak(){
    this.setState({
      breakTime:this.state.breakTime-1
    });
  }
  startTimer(){
    this.setState({
      timer: setInterval(this.reduceTimer, 1000), 
      startbuttonvisible:false,
      pausebuttonvisible:true,
      stopbuttonvisible:true,
    });    
  }
  pauseTimer(){
    clearInterval(this.state.timer);
    this.setState({      
      pausebuttonvisible:false,
      resumebuttonvisible:true,
    });    
  }
  resumeTimer(){
    this.setState({
      timer: setInterval(this.reduceTimer, 1000), 
      startbuttonvisible:false,
      pausebuttonvisible:true,
      stopbuttonvisible:true,
      resumebuttonvisible:false,
    }); 
  }
  stopTimer(){
    clearInterval(this.state.timer);
    this.setState({
      baseTime:25,
      timer: null, 
      startbuttonvisible:true,
      pausebuttonvisible:false,
      stopbuttonvisible:false,
      resumebuttonvisible:false,
    });  
  }
  reduceTimer(){ 
    if(this.state.baseTime === 0) return;
    const newTime = this.state.baseTime - 1;
    this.setState({
      baseTime: newTime,
    });
  }
  render() {
    
    return (
      <div className="container">
         <div className="timebox">
            <div className="header">
                    Pomodoro Clock
            </div>
            <TimerDisplay currentTime={this.state.baseTime} breakTime={this.state.breakTime}/>
            <div id="action-title">
                <small>SETTINGS</small>
            </div>
            <div className="actions">
              <SetTimer minus={this.minus} add={this.add}/>
              <SetBreak minusbreak={this.minusbreak} addbreak={this.addbreak}/>
            </div>
           <div className="timer-control">
            {this.state.startbuttonvisible ? <button id="start-timer" onClick={this.startTimer}>
                START
            </button> : null}
           {this.state.pausebuttonvisible ? <button id="pause-timer" onClick={this.pauseTimer}>
                PAUSE
            </button>: null}
           {this.state.resumebuttonvisible ? <button id="resume-timer" onClick={this.resumeTimer}>
                RESUME
            </button>: null}
           {this.state.stopbuttonvisible ? <button id="stop-timer" onClick={this.stopTimer}>
                STOP
            </button>: null}
           </div>
        </div>
      </div>
    );
  }
}

ReactDOM.render(
  <App />,
  document.getElementById('root')
);

   </script>
</body>
</html>

14
Mayank Shukla

Voici un exemple plus simple pour les minimalistes dans la salle:

<!DOCTYPE html>
<html>
  <head>
    <meta charset='UTF-8'>
    <title>Minimal Static React</title>
    <script src='https://unpkg.com/[email protected]/umd/react.production.min.js'></script>
    <script src='https://unpkg.com/[email protected]/umd/react-dom.production.min.js'></script>
    <script src='https://unpkg.com/[email protected]/babel.js'></script>
  </head>
  <body>
    <div id='root'></div>

    <script type='text/babel'>
      class App extends React.Component {
        constructor(props) {
          super(props)
          this.state = {count: 1}
          this.increase = this.increase.bind(this)
          this.decrease = this.decrease.bind(this)
        }

        increase() {
          this.setState({'count': this.state.count+1})
        }

        decrease() {
          this.setState({'count': this.state.count-1})
        }

        render() {
          return (
            <div>
              <h1>Count: { this.state.count }</h1>
              <div onClick={this.increase}>+</div>
              <div onClick={this.decrease}>-</div>
            </div>
          )
        }
      }

      ReactDOM.render(<App />, document.querySelector('#root'));
    </script>
  </body>
</html>

0
duhaime
<head>
<title>Beginner's Guide to React</title>
<meta charset="UTF-8" />
</head>
<body>
<div id="root"></div>
<script src="https://unpkg.com/[email protected]/umd/react.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/umd/react-dom.production.min.js">       </script>
<script src="https://unpkg.com/[email protected]/babel.js"></script>

<script type="text/babel">
    const rootElement = document.getElementById('root');

     const element = React.createElement('div',{className:''},'Hello World' );

     ReactDOM.render(element, rootElement);

</script>

0
ASHISH RANJAN