jquery - 循环 JSON 并提取数组/描述，需要帮助

Question

[
{
    "Description": "Accommodation",
    "ChartData": [
        {
            "label": "Acceptable",
            "data": 24
        },
        {
            "label": "Excellent",
            "data": 30
        },
        {
            "label": "Good",
            "data": 96
        },
        {
            "label": "Poor",
            "data": 2
        }
    ]
},    
{
    "Description": "Food and Beverage",
    "ChartData": [
        {
            "label": "Acceptable",
            "data": 44
        },
        {
            "label": "Excellent",
            "data": 24
        },
        {
            "label": "Good",
            "data": 94
        },
        {
            "label": "Poor",
            "data": 13
        }
    ]
},
{
    "Description": "Meeting Space",
    "ChartData": [
        {
            "label": "Acceptable",
            "data": 30
        },
        {
            "label": "Below Expectations",
            "data": 2
        },
        {
            "label": "Exceeds Expectations",
            "data": 3
        },
        {
            "label": "Excellent",
            "data": 54
        },
        {
            "label": "Good",
            "data": 111
        },
        {
            "label": "Meets Expectations",
            "data": 7
        },
        {
            "label": "Poor",
            "data": 6
        }
    ]
},    
{
    "Description": "Service",
    "ChartData": [
        {
            "label": "Acceptable",
            "data": 25
        },
        {
            "label": "Exceeds Expectations",
            "data": 3
        },
        {
            "label": "Excellent",
            "data": 46
        },
        {
            "label": "Good",
            "data": 111
        },
        {
            "label": "Meets Expectations",
            "data": 8
        },
        {
            "label": "Poor",
            "data": 11
        }
    ]
},
{
    "Description": "Standard of Decor",
    "ChartData": [
        {
            "label": "Acceptable",
            "data": 38
        },
        {
            "label": "Excellent",
            "data": 34
        },
        {
            "label": "Good",
            "data": 126
        },
        {
            "label": "Poor",
            "data": 5
        }
    ]
}
]

使用上面的 JSON，如何循环遍历每个变量并分配两个包含描述的变量以及 jquery/javascript 中的 ChartData 数组，即

foreach() {
var Description = data[].Description;
var ArrayOfChartData = data[].ChartData;
}

我尝试使用 .each 循环，但无法返回正确的数据。

Answer 1

JavaScript 数组有 forEach方法:

data.forEach(function (v) {
    var Description = v.Description;
    var ArrayOfChartData = v.ChartData;
    // now use that...
});

这是 fiddle :http://jsfiddle.net/u7RuZ/

<小时/>

遗憾的是，IE < 9 不支持此功能。如果必须支持IE8，可以使用jQuery的$.each :

$.each(data, function (i, v) {
    var Description = v.Description;
    var ArrayOfChartData = v.ChartData;
    // now use that...
});

这是 fiddle :http://jsfiddle.net/u7RuZ/1/