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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta http-equiv="X-UA-Compatible" content="IE=edge">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- /* map 数据结构 存放键值对 */
- var obj = {
- name: 'zs'
- }
- var a1 = new Map()
- a1.set('age',20)
- a1.set(obj,'aaa')
- a1.set('name','lisi')
- console.log(a1)
- console.log(a1.get('name'))
- console.log(a1.get(obj))
- a1.set('name','Tom')
- // console.log(a1.get('name'))
- console.log(a1.has('name'))
- console.log(a1.has('sex'))
- console.log(a1.delete('sex'))
- console.log(a1)
-
- a1.clear()
- console.log(a1)
- </script>
- </body>
- </html>
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