如何将JSON转换为javascript数组?

I've passed a Java HashMap as JSON to the client side. The resulting JSON is as follows:

我已经将Java HashMap作为JSON传递给客户端。得到的JSON如下:

{
  "2013-02-27T07:25:35.000+0000": 40,
  "2013-03-01T07:25:35.000+0000": 33,
  "2013-02-26T07:25:35.000+0000": 25,
  "2013-02-23T07:25:35.000+0000": 54,
  "2013-03-03T10:12:59.000+0000": 26,
  "2013-03-02T07:12:59.000+0000": 25
}

But for plotting onto Flot charts I need the input in the following format:

但是为了绘制Flot图表，我需要以下格式的输入:

[
[1328983200000, 40],
[1328983200000, 33], 
[1328983200000, 25],
[1328983200000, 54],
[1328983200000, 26], 
[1328983200000, 25]
];

where the first value is Unix Timestamp X 1000

第一个值是Unix时间戳X 1000

(The time series support in Flot is based on Javascript timestamps, i.e. everywhere a time value is expected or handed over, a Javascript timestamp number is used. This is a number, not a Date object. A Javascript timestamp is the number of milliseconds since January 1, 1970 00:00:00 UTC. This is almost the same as Unix timestamps, except it's in milliseconds, so remember to multiply by 1000!)

Flot中的时间序列支持是基于Javascript时间戳的，即在期望或提交时间值的任何地方，都使用Javascript时间戳号。这是一个数字，而不是一个日期对象。Javascript时间戳是自1970年1月1日00:00 UTC开始的毫秒数。这几乎和Unix时间戳一样，只不过它是以毫秒为单位的，所以记住要乘以1000!)

How can I convert it? Can anyone kindly guide. :(

怎么转换呢?谁能请指导。:(

2 个解决方案

#1

var list = {
    "2013-02-27T07:25:35.000+0000": 40,
    "2013-03-01T07:25:35.000+0000": 33,
    "2013-02-26T07:25:35.000+0000": 25,
    "2013-02-23T07:25:35.000+0000": 54,
    "2013-03-03T10:12:59.000+0000": 26,
    "2013-03-02T07:12:59.000+0000": 25
}, arr = [];

for (var key in list) {
    arr.push([+new Date(key)*100, list[key]]);  //One simple line of code
}                                               //Keep trying!


console.log(arr);

http://jsfiddle.net/DerekL/F4tst/

http://jsfiddle.net/DerekL/F4tst/

#2

What you could do is iterate through the object, create a Date object out of the date you have, use the getTime() method to get the timestamp in milliseconds, create a new array, then push it onto your main array. This may not be the best solution, but it will work.

您可以做的是遍历对象，在已有的日期之外创建一个日期对象，使用getTime()方法以毫秒为单位获取时间戳，创建一个新数组，然后将其推到主数组中。这可能不是最好的解决方案，但它会起作用。

Assuming your JSON object is named obj;

假设您的JSON对象名为obj;

var mainArray = [];
for (var x in obj) {
    var tmpDate = (new Date(x)).getTime();
    var smallArray = [tmpDate, obj[x]];
    mainArray.push(smallArray);
}