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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>
- //引用数据类型 object
- var a = [1,2,3,4]
- console.log(a[0])
- var b = {
- name: 'zs',
- age: 18
- }
- console.log(b)//object
- // console.log(b.name)
- b.name = 'lisi'
- console.log(b)
- var person = new Array()
- person['age'] = 20
- person['name'] = 'xiaoming'
- console.log(person)
- //Array是一个特殊的Object
- var a1 = 123
- var a2 = '123'
- var a3 = true
- var a4 = undefined
- var a5 = [1,2,3]
- var a6 = {
- name: 'xiaohong'
- }
- console.log(typeof a5)
- </script>
- </body>
- </html>
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