JavaScript对象内部的数组？

Question

我试图查看这是否可行，但找不到答案。

我正在尝试以下工作：

var defaults = {
 'background-color': '#000',
 color: '#fff',
 weekdays: {['sun','mon','tue','wed','thu','fri','sat']}
};

它只是给出了一个错误，我已经尝试使用({...})和[{...}]，我希望能够使用类似这样的方法来访问工作日：

defaults.weekdays[0];

这可能吗？

Answer 1

杀死括号。

var defaults = {
 backgroundcolor: '#000',
 color: '#fff',
 weekdays: ['sun','mon','tue','wed','thu','fri','sat']
};

Answer 2

// define
var foo = {
  bar: ['foo', 'bar', 'baz']
};

// access
foo.bar[2]; // will give you 'baz'

Answer 3

var data = {
  name: "Ankit",
  age: 24,
  workingDay: ["Mon", "Tue", "Wed", "Thu", "Fri"]
};

for (const key in data) {
  if (data.hasOwnProperty(key)) {
    const element = data[key];
      console.log(key+": ", element);
  }
}

Answer 4

var defaults = {

  "background-color": "#000",
  color: "#fff",
  weekdays: [
    {0: 'sun'},
    {1: 'mon'},
    {2: 'tue'},
    {3: 'wed'},
    {4: 'thu'},
    {5: 'fri'},
    {6: 'sat'}
  ]

};
               
console.log(defaults.weekdays[3]);

Answer 5

关于一个对象中的多个数组。例如，您想要记录不同课程的模块

var course = {
    InfoTech:["Information Systems","Internet Programming","Software Eng"],
    BusComm:["Commercial Law","Accounting","Financial Mng"],
    Tourism:["Travel Destination","Travel Services","Customer Mng"]
};
console.log(course.Tourism[1]);
console.log(course.BusComm);
console.log(course.InfoTech);

Answer 6

var obj = {
 webSiteName: 'StackOverFlow',
 find: 'anything',
 onDays: ['sun'     // Object "obj" contains array "onDays" 
            ,'mon',
            'tue',
            'wed',
            'thu',
            'fri',
            'sat',
             {name : "jack", age : 34},
              // array "onDays"contains array object "manyNames"
             {manyNames : ["Narayan", "Payal", "Suraj"]}, //                 
           ]
};