es6:数据类型 symbol

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>数据类型 symbol</title>
</head>
<body>
    <script>
        const peter = Symbol('peter');//创建唯一标志符
        const calssRoom = {
            [Symbol('a')]:{age:12},
            [Symbol('b')]:{age:142},
            [Symbol('b')]:{age:13}
        }

        const  syms = Object.getOwnPropertySymbols(calssRoom).map(sym => calssRoom[sym]);
        console.log(syms)
    </script>
</body>
</html>

来源：CSDN

作者：无＆境

链接：https://blog.csdn.net/qq_44891434/article/details/103588810

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