es6_symbol_0">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>
