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  • Uncaught SyntaxError: Inline Babel script: Unexpected token

    1、错误描述

    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>
    
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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13313716.html
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