lovecoding
/
vipAllDay


			
				
					
						
						
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							<!DOCTYPE html>
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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        /**
         * js数据类型：
         * 基本数据类型：
         *  number string boolean null undefined 
         *  Symbol(独一无二的 唯一的)
         * 引用数据类型
         * Object(object array function)
        */
       var a = Symbol();
       console.log(a);
       var a1 = Symbol(1);
       var a2 = Symbol(1);
       console.log(a1 == a2);
    </script>
</body>
</html>