关于数组：是否仍要知道特定类型的javascript变量

Is there anyway to know specific type of javascript variable

本问题已经有最佳答案，请猛点这里访问。

我的变量data如下

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

var data = [
{
id: 1,
name:"John",
sex:"M",
maritalStatus:"M",
dob:"01-01-1990",
title:"Software Engineer",
address:"VN",
phoneNumber:"(123) 456-7890",
email:"[email protected]"
}
];

var data = [
["1","John","M","M","1990","Software Engineer","[email protected]","(123) 456-7890"],
];

有没有办法知道他们的类型。我用的是typeof(data)，但都表明这是对象。

相关讨论

可以使用Objist.Trimest.toStRew()调用(对象)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

var data =
{
id: 1,
name:"John",
sex:"M",
maritalStatus:"M",
dob:"01-01-1990",
title:"Software Engineer",
address:"VN",
phoneNumber:"(123) 456-7890",
email:"[email protected]"
};

console.log(Object.prototype.toString.call(data) ); //[object Object]

var data2 = [
{
id: 1,
name:"John",
sex:"M",
maritalStatus:"M",
dob:"01-01-1990",
title:"Software Engineer",
address:"VN",
phoneNumber:"(123) 456-7890",
email:"[email protected]"
}
];

console.log(Object.prototype.toString.call(data2) ); //[object Array]

var data1 = [
["1","John","M","M","1990","Software Engineer","[email protected]","(123) 456-7890"],
];

console.log(Object.prototype.toString.call(data1) );//[object Array]

由于数据是一个数组，因此Array.isArray(data)将返回true。

编辑：

在该答案的注释中澄清后，Array.isArray(data[0])将检查数组数据中的第一个元素是否是数组。