如何使用jQuery成功console.log一个JSON数组值

Question

使用我的下面的Javascript我将JSON数组定义为变量：

var json =     [
  {
        "pk": 981,
        "name": "Uruguay",
        "distributor": {
            "id": 28,
            "name": "Store 1",
            "email": "[email protected]",
            "phone": "",
            "site": "",
            "ownership": 1,
            "shipping_cost": 1600,
            "fulfilled": false,
            "items": [
                213,
                215,
                217
            ]
        }
    },
    {
        "pk": 982,
        "name": "US Minor Outlying Islands",
        "distributor": {
            "id": 31,
            "name": "International",
            "email": "[email protected]",
            "phone": "1231231234",
            "site": "http://www.example.com",
            "ownership": 1,
            "shipping_cost": 1600,
            "fulfilled": false,
            "items": [
                213,
                215,
                217
            ]
        }
    },
    {
        "pk": 983,
        "name": "Uzbekistan",
        "distributor": {
            "id": 31,
            "name": "International",
            "email": "[email protected]",
            "phone": "1231231234",
            "site": "http://www.example.com",
            "ownership": 1,
            "shipping_cost": 1600,
            "fulfilled": false,
            "items": [
                213,
                215,
                217
            ]
        }
    }
  ];

然后我试图在pk字段上使用jQuery的每个函数和值引用来将name字段值记录到控制台。

$.each(json.pk, function(i, v) {
    if (v.pk == 981) {
        console.log(v.name);
        return;
    }
});

我尝试了很多这方面的变化，但我似乎无法触发条件，这将允许我控制日志值。我究竟做错了什么？

Answer 1

你试过这种方式吗？

$.each(json, function(i, v) {
    if (v.pk == 980) {
        console.log(v.name);
        return;
    }
});

Answer 2

你需要在json而不是$each传递json.pk

var json =     [
  {
        "pk": 981,
        "name": "Uruguay",
        "distributor": {
            "id": 28,
            "name": "Store 1",
            "email": "[email protected]",
            "phone": "",
            "site": "",
            "ownership": 1,
            "shipping_cost": 1600,
            "fulfilled": false,
            "items": [
                213,
                215,
                217
            ]
        }
    },
    {
        "pk": 982,
        "name": "US Minor Outlying Islands",
        "distributor": {
            "id": 31,
            "name": "International",
            "email": "[email protected]",
            "phone": "1231231234",
            "site": "http://www.example.com",
            "ownership": 1,
            "shipping_cost": 1600,
            "fulfilled": false,
            "items": [
                213,
                215,
                217
            ]
        }
    },
    {
        "pk": 983,
        "name": "Uzbekistan",
        "distributor": {
            "id": 31,
            "name": "International",
            "email": "[email protected]",
            "phone": "1231231234",
            "site": "http://www.example.com",
            "ownership": 1,
            "shipping_cost": 1600,
            "fulfilled": false,
            "items": [
                213,
                215,
                217
            ]
        }
    }
  ];
  
  $.each(json, function(i, v) {
    if (v.pk == 981) {
        console.log(v.name);
    }
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Answer 3

如果JSON是Array类型，可以很容易地在json对象中导航。

$.each(json, function (key, value) {
    console.log((key + 1), value);
});

Demo