Question

我有一个对象数组，我需要通过它来获取数据，而我却没有得到它。我正在使用纯JavaScript。

解决了!!!!!!!

感谢您的个人帮助！数组作为一个字符串输入，我在迭代之前解析，一切都解决了！

＆＃13;

// Example of array received by the function, this array is not declared in this 
// js only received as parameter. I am putting so that they can see the format
// of the data received
[{
    "id": 171659,
    "latitude": "-51.195946",
    "longitude": "-30.021810",
    "estado": "INSTALADO"
  },
  {
    "id": 171658,
    "latitude": "-51.196155",
    "longitude": "-30.021615",
    "estado": "INSTALADO"
  }
]

// My js file contains only the function that receives the data, it follows the 
// complete file. The array is not declared here, just received by the function. 
// Received successfully but can not iterate

// ====== Get Array ======
function getArray(data) {
  
  var json = JSON.parse(data); //The data enters as string was needed parse()

  for (var i = 0; i < json.length; i++) {
	  console.log(json[i].id); // undefined
  }	
  
}

＆＃13;

Answer 1

您尚未声明data数组

var data = [{
    "id": 171659,
    "latitude": "-51.195946",
    "longitude": "-30.021810",
    "estado": "INSTALADO"
  },
  {
    "id": 171658,
    "latitude": "-51.196155",
    "longitude": "-30.021615",
    "estado": "INSTALADO"
  }
]

for (var i = 0; i < data.length; i++) {
  console.log(data[i].id);

}

使用参数

更新回答。

//The received array
var pass = [{
"id": 171659,
"latitude": "-51.195946",
"longitude": "-30.021810",
"estado": "INSTALADO"
  },
  {
"id": 171658,
"latitude": "-51.196155",
"longitude": "-30.021615",
"estado": "INSTALADO"
  }
]

getArray(pass);

//My function receiving date
function getArray(data){

  for (var i = 0; i < data.length; i++) {
   console.log(data[i].id);

  }
}

Answer 2

var data = [
 {
   "id": 171659,
   "latitude": "-51.195946",
   "longitude": "-30.021810",
   "estado": "INSTALADO"
 },
  {
    "id": 171658,
    "latitude": "-51.196155",
    "longitude": "-30.021615",
    "estado": "INSTALADO"
  }
]
function getArray(data){
  for (var i = 0; i < data.length; i++) {
    console.log(data[i].id);
}}

getArray(data)

您需要将对象分配给变量，然后在函数中调用该变量

在javascript中迭代对象数组

2 个答案: