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react.html
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react.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>React Demo</title>
<style media="screen">
.messageBox {
border: 1px solid;
margin: 1em;
padding: 2em;
}
.error {
border-color: red;
background-color: #eebbbb;
}
.success {
border-color: blue;
background-color: #bbbbee;
}
.hidden {
display: none;
}
</style>
</head>
<body>
<main id="content"></main>
<script src="https://unpkg.com/babel-standalone"></script>
<script type="text/javascript" src="https://unpkg.com/[email protected]/dist/react.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/[email protected]/dist/react-dom.min.js"></script>
<script type="text/babel" data-presets="react">
class NameInput extends React.Component {
constructor(props) {
super(props);
this.state = {
message: {
type: undefined,
body: undefined
}
}
this.buttonClicked = this.buttonClicked.bind(this);
}
buttonClicked(evt) {
let name = this.refs.nameInput.value;
this.setState({
message: {
type: name ? "success" : "error",
body: name ? "Welcome to React, " + name : "You must enter a name!"
}
});
}
render() {
let msg = this.state.message;
return (
<div>
<label>Name: <input ref="nameInput" type="text" /></label>
<button onClick={this.buttonClicked}>Click me!</button>
<MessageBox type={msg.type} message={msg.body}/>
</div>
)
}
}
class MessageBox extends React.Component {
render() {
return (
<div className={"messageBox " + (this.props.type || "hidden")}>
{this.props.message}
</div>
)
}
}
ReactDOM.render(<NameInput />, document.getElementById('content'));
</script>
</body>
</html>