React

by Dedi Wibisono

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.done {
  color: rgba(0, 0, 0, 0.3);
  text-decoration: line-through;
}

input {
  margin-right: 5px;
}

React

class TodoApp extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
    	items: [],
      isLoaded : false,
    }
  }
  
  componentDidMount (){
  	fetch('https://jsonplaceholder.typicode.com/users')
    .then(res => res.json())
    .then(json =>{
    	this.setState({
      	isLoaded : true,
        items: json
      })
    })
  }
  
  render() {
  	var {isLoaded, items} = this.state;
    
    if (!isLoaded) {
      return <div>Loading.</div>
    } else {
        return (
        <div className="App">
           Data Has Loaded
        </div>
      )
    }
  
    
  }
}

ReactDOM.render(<TodoApp />,document.querySelector("#app"))