SOURCE

console 命令行工具 X clear 

                    

                        
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console

            
const app = document.querySelector('#app2')
const element = React.createElement(
  'button',
  { onClick: () => this.setState({ liked: true }) },
  'Like'
)
ReactDOM.render(element, app)


            
<body>
	<div id="app1"></div>
	<div id="app2"></div>
	</script>
    <!-- 编译 JSX -->
	<script src="https://unpkg.com/babel-standalone@6/babel.min.js">
	</script>
	<script type="text/babel">
      ReactDOM.render(
        <h1>Hello, world! 尝试 JSX 写法</h1>,
        document.getElementById('app1')
      );
    </script>
</body>


            

                
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