Uncaught SyntaxError: Inline Babel script: Unexpected token

清疚 2022-02-02 01:49 347阅读 0赞

1、错误描述

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly95b3VoYWlkb25nLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70][]

2、错误原因

<!DOCTYPE html>
    <html>
    	<head>
    		<meta charset="UTF-8">
    		<title></title>
    		<script type="text/javascript" src="../js/react.development.js" ></script>
    		<script type="text/javascript" src="../js/react-dom.development.js" ></script>
    		<script type="text/javascript" src="../js/babel.min.js"></script>
    	</head>
    	<body>
    		<div id="animal"></div>
    		<script type="text/babel">
    			class Animal extends React.Component{
    				render(){
    					return{
    						<label style={
       {fontSize:this.props.fontSize+"px",color:this.props.fontColor}}>{this.props.name}</label>
    					};
    				}
    			}
    			
    			Animal.defaultProps = {
    				name:'猫',
    				fontSize:100,
    				fontColor:'#FF8899'
    			}
    			
    			ReactDOM.render(
    				<Animal/>,
    				document.getElementById('animal')
    			)
    		</script>
    	</body>
    </html>

在定义类Animal时，render方法中的return后面需要使用小括号，而不是大括号

3、解决办法

<!DOCTYPE html>
    <html>
    	<head>
    		<meta charset="UTF-8">
    		<title></title>
    		<script type="text/javascript" src="../js/react.development.js" ></script>
    		<script type="text/javascript" src="../js/react-dom.development.js" ></script>
    		<script type="text/javascript" src="../js/babel.min.js"></script>
    	</head>
    	<body>
    		<div id="animal"></div>
    		<script type="text/babel">
    			class Animal extends React.Component{
    				render(){
    					return(
    						<label style={
       {fontSize:this.props.fontSize+"px",color:this.props.fontColor}}>{this.props.name}</label>
    					);
    				}
    			}
    			
    			Animal.defaultProps = {
    				name:'猫',
    				fontSize:100,
    				fontColor:'#FF8899'
    			}
    			
    			ReactDOM.render(
    				<Animal/>,
    				document.getElementById('animal')
    			)
    		</script>
    	</body>
    </html>

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly95b3VoYWlkb25nLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70]: /images/20220202/899bee28159942ccb2cfdac027119dab.png