Question

我正在研究商店定位器，需要创建一个对象数组（称为开业者数据），每个对象都是一个商店。可以，但是我推入数组的任何对象都不起作用。

代码如下：

let practitionersData = [];
practitionersData.push({
    "name": "Chipotle Minneapolis",
    "address": "3045 Excelsior Blvd",
    "address2": "",
    "city": "Minneapolis",
    "state": "MN",
    "postal": "55416",
    "phone": "612-922-6662",
    "web": "http://www.chipotle.com",
    "hours1": "Mon-Sun 11am-10pm",
    "hours2": "",
    "hours3": "",
    "featured": "",
    "features": "",
    "lat": "44.947464",
    "lng": "-93.320826",                
    "date": "10/17/18",
    "formattedaddress":"3040 Excelsior Blvd, Minneapolis MN 55416"
    }); 

let temperedOBJ = {
        "name": "Chipotle Minneapolis2",
        "address": "30451 Excelsior Blvd",
        "address2": "",
        "city": "Minneapolis",
        "state": "MN",
        "postal": "55416",
        "phone": "612-922-6662",
        "web": "http://www.chipotle.com",
        "hours1": "Mon-Sun 11am-10pm",
        "hours2": "",
        "hours3": "",
        "featured": "",
        "features": "",
        "lat": "44.947464",
        "lng": "-93.320826",                
        "date": "10/17/18",
        "formattedaddress":"3040 Excelsior Blvd, Minneapolis MN 55416"
}

practitionersData.push(temperedOBJ);

console.log('==== start practitionersData =====')
console.log(practitionersData);
console.log(typeof practitionersData);            
console.log('==== start practitionersData 0 =====')
console.log(practitionersData[0]);     
console.log(typeof practitionersData[0]);            
console.log('==== start practitionersData 1 =====')
console.log(practitionersData[1]);                                                    
console.log(typeof practitionersData[1]);

实践者数据[0]的值和类型看起来不错并显示一个对象。实践者数据[1]的值和类型未在控制台中显示，并且未定义。如果查看整个数组，则会看到每个索引处的对象。

为什么当推入一个对象时它会保留一个对象，但是如果我推入一个代表对象的变量却变得不确定？

Answer 1

您仅将一个对象推入数组。尝试在使用console.log（）之前添加practitionersData.push(temperedOBJ)

Answer 2

==== start practitionersData =====
[
  {
    "name": "Chipotle Minneapolis",
    "address": "3045 Excelsior Blvd",
    "address2": "",
    "city": "Minneapolis",
    "state": "MN",
    "postal": "55416",
    "phone": "612-922-6662",
    "web": "http://www.chipotle.com",
    "hours1": "Mon-Sun 11am-10pm",
    "hours2": "",
    "hours3": "",
    "featured": "",
    "features": "",
    "lat": "44.947464",
    "lng": "-93.320826",
    "date": "10/17/18",
    "formattedaddress": "3040 Excelsior Blvd, Minneapolis MN 55416"
  },
  {
    "name": "Chipotle Minneapolis2",
    "address": "30451 Excelsior Blvd",
    "address2": "",
    "city": "Minneapolis",
    "state": "MN",
    "postal": "55416",
    "phone": "612-922-6662",
    "web": "http://www.chipotle.com",
    "hours1": "Mon-Sun 11am-10pm",
    "hours2": "",
    "hours3": "",
    "featured": "",
    "features": "",
    "lat": "44.947464",
    "lng": "-93.320826",
    "date": "10/17/18",
    "formattedaddress": "3040 Excelsior Blvd, Minneapolis MN 55416"
  }
]
object
==== start practitionersData 0 =====
{
  "name": "Chipotle Minneapolis",
  "address": "3045 Excelsior Blvd",
  "address2": "",
  "city": "Minneapolis",
  "state": "MN",
  "postal": "55416",
  "phone": "612-922-6662",
  "web": "http://www.chipotle.com",
  "hours1": "Mon-Sun 11am-10pm",
  "hours2": "",
  "hours3": "",
  "featured": "",
  "features": "",
  "lat": "44.947464",
  "lng": "-93.320826",
  "date": "10/17/18",
  "formattedaddress": "3040 Excelsior Blvd, Minneapolis MN 55416"
}
object
==== start practitionersData 1 =====
{
  "name": "Chipotle Minneapolis2",
  "address": "30451 Excelsior Blvd",
  "address2": "",
  "city": "Minneapolis",
  "state": "MN",
  "postal": "55416",
  "phone": "612-922-6662",
  "web": "http://www.chipotle.com",
  "hours1": "Mon-Sun 11am-10pm",
  "hours2": "",
  "hours3": "",
  "featured": "",
  "features": "",
  "lat": "44.947464",
  "lng": "-93.320826",
  "date": "10/17/18",
  "formattedaddress": "3040 Excelsior Blvd, Minneapolis MN 55416"
}
object

请查看执行代码后得到的输出。我得到了“对象”作为输出并且没有变得不确定。

将对象推入数组会产生未定义的错误

2 个答案: