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<!DOCTYPE html>
<html lang="en">
<head>
<script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
<title>reactComponent01</title>
</head>
<body>
<div id="root"></div>
<script type="text/babel">
// const e = React.createElement;
class LikeButton extends React.Component {
constructor(props) {
super(props);
this.state = {
liked: false
}
}
// render() {
// return e(
// 'button',
// { onClick: () => { this.setState({ liked: true }) }, type: 'submit' },
// this.state.liked === true ? 'Liked' : 'Like'
// );
// }
render() { // JSX (JS + XML)
return (
<button type="submit" onClick={() => { this.setState({ liked: true }) }}>
{this.state.liked === true ? 'Liked' : 'Like'}
</button>
)
}
}
</script>
<!-- <script>
ReactDOM.render(e(LikeButton), document.querySelector('#root'));
</script> -->
<script type="text/babel">
ReactDOM.render(<LikeButton/>, document.querySelector('#root'));
</script>
</body>
</html>