| 123456789101112131415161718192021222324252627 |
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- // Symbol
- let username = Symbol();
- let obj = {
- age:18,
- school:"xxx大学",
- // username:"李四"
- }
- obj[username] = "张三"
- // obj.username = "张三"
- console.log(obj);
- // 获取Symbol属性值
- console.log(obj[username]);
- // Symbol 一般用作于对象的属性名 防止属性名冲突
- </script>
- </body>
- </html>
|
