lovecoding
/
VIP28


			
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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>