如何从JSON字符串中检索键和值 [英] How to retrieve key and value from JSON String

问题描述

我有以下格式的JSON字符串:

I have a JSON String in this format:

{
  "supplier": {
    "mov_10": "love actually",
    "mov_1": "fare"
  },
  "quantity": 20,
  "success": true,
  "length":2
}

现在，我想使用supplier对象(同时使用键和值)在下面创建一个选择框，如下所示:

Now I want to create a select box below using the supplier object (using both the keys and values), like this:

<select id="selectme">
    <option id="mov_10">love actually</option>
    <option  id="mov_1">fare</option>
</select>

那么我该如何创建它?我只想知道如何在对象中到达mov_10和mov_1. 对不起，我的英语不好，但是请帮助我.

So how do I create it? I just want to know how to reach mov_10 and mov_1 in the object. Sorry for my bad English, but please help me.

谢谢.

推荐答案

如果我正确理解了这个问题，我认为您可能需要使用以下方法:

If I understood the question correctly, I think you might want to use something along this:

var jsonArray = ... ; // {"supplier": ... } (JS Object)
var supplierOptions = jsonArray.supplier;

// TODO: remember to set up selectme!

for(var optionId in supplierOptions) {
    if(!supplierOptions.hasOwnProperty(optionId)) {
        continue;
    }

    var optionValue = supplierOptions[optionId];

    // operate with name and value here (append to select ie.)
    $("#selectme").append('<option id="' + optionId + '">' + optionValue + '</option>');
}

该代码可能需要进行一些清理.希望它传达了基本思想.

The code probably could use some cleaning up. Hopefully it conveys the basic idea, though.

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