将 JSON 解析为多维数组 JS

发布于 2024-12-15 03:58:47 字数 519 浏览 0 评论 0原文

我有一个 JSON 文件，我想从中创建一个多维数组。此信息存储在 JSON 文件中。

这是 JSON 数据。

{
  "table": {
    "columnNames": ["column1", "column2", "column3", "column4"],
    "columnTypes": ["String", "String", "String", "String"],
    "rows": [
      ["data00", "data01", "data02", "data03"],
      ["data10", "data11", "data12", "data13"],
      ["data20", "data21", "data22", "data23"],
      ["data30", "data31", "data32", "data33"]
     ]
   }
}

我需要从“行”部分中的对象创建一个数组数组。

任何帮助将不胜感激！

谢谢！！！

原文

I have a JSON file that I would like to create an multi-dimensional array from. This information is stored in a JSON file.

Here is the JSON data.

{
  "table": {
    "columnNames": ["column1", "column2", "column3", "column4"],
    "columnTypes": ["String", "String", "String", "String"],
    "rows": [
      ["data00", "data01", "data02", "data03"],
      ["data10", "data11", "data12", "data13"],
      ["data20", "data21", "data22", "data23"],
      ["data30", "data31", "data32", "data33"]
     ]
   }
}

I need to create an array of arrays from the objects in the "rows" section.

Any help would be appreciated!

Thanks!!!

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温柔戏命师 2024-12-22 03:58:47

解析 JSON 后，“table.rows”属性将已经是一个多维数组（具体来说是 2 维）。您所要做的就是访问它：

var array2D = parsed.table.rows;

至于解析，您可能应该使用类似 Crockford 的解析器：

var parsed = JSON.parse(rawStringOfJSON);

Once you parse the JSON, the "table.rows" property will already be a multi-dimensional array (2 dimensions, to be specific). All you have to do is access it:

var array2D = parsed.table.rows;

As to parsing, you should probably use something like Crockford's parser:

var parsed = JSON.parse(rawStringOfJSON);

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幼儿园老大 2024-12-22 03:58:47

首先需要将字符串转换为 JS 对象。

使用 http://www.json.org/js.html 中的 json2.js

请记住，如果您考虑支持旧浏览器，则需要添加 json2.js。较新的浏览器内置了对 JSON 的支持，

并将字符串反序列化为对象

var myObject = JSON.parse(myJSONtext);

，现在您可以访问

myObject.table.rows[1][2]; // yields data12

You first need to convert the string to JS object.

Use json2.js from http://www.json.org/js.html

Please keep in mind that you need to add json2.js if you consider to support old browsers. Newer browser has built-in support for JSON

And deserialize the string to object

var myObject = JSON.parse(myJSONtext);

And now you can access

myObject.table.rows[1][2]; // yields data12

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小糖芽 2024-12-22 03:58:47

rows 部分已经包含一个数组数组，所以只需使用：

var result = JSON.parse('{
  "table": {
  "columnNames": ["column1", "column2", "column3", "column4"],
  "columnTypes": ["String", "String", "String", "String"],
  "rows": [
    ["data00", "data01", "data02", "data03"],
    ["data10", "data11", "data12", "data13"],
    ["data20", "data21", "data22", "data23"],
    ["data30", "data31", "data32", "data33"]
   ]
  }
}');

var rows = result.table.rows;

The rows section already contains an array of arrays, so just use:

var result = JSON.parse('{
  "table": {
  "columnNames": ["column1", "column2", "column3", "column4"],
  "columnTypes": ["String", "String", "String", "String"],
  "rows": [
    ["data00", "data01", "data02", "data03"],
    ["data10", "data11", "data12", "data13"],
    ["data20", "data21", "data22", "data23"],
    ["data30", "data31", "data32", "data33"]
   ]
  }
}');

var rows = result.table.rows;

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