javascript - 将 $get 结果字符串转换为 javascript 数组

Question

我正在寻找使用 jqplot 插件 ( http://www.jqplot.com/tests/pie-donut-charts.php ) 来生成饼图，但是我无法将 $get 函数的结果转换为 jqplot 函数可接受的可用数据。

您可以在上面的 jqplot 链接中看到我需要如何创建用于显示饼图的数据变量。

这是我的 $.get 函数，它当前返回一个字符串:

//data is returned as a string: 'some_field_name',10,'some_other_field,33 etc
$.get("notesajax.php", {month:monthFilter, area:areaFilter}, function(data) {
    var arr = data.split(",");
    var results = [];
    for (var i = 0; i < arr.length; i++) {
        mini = [];
        mini[arr[i]] = "'"+arr[i]+"',"+arr[i+1];
        results.push(mini);
        i++;
    }

为了便于引用，这里是 jqplot 函数，在开头包含一个定义的“数据”变量，以说明 jqplot 期望如何接收数据。

//this variable is just for illustrative purposes
var data = [
    ['Heavy Industry', 12],['Retail', 9], ['Light Industry', 14], 
    ['Out of home', 16],['Commuting', 7], ['Orientation', 9]
];

var plot1 = jQuery.jqplot ('chartdiv', [results], 
    { 
        seriesDefaults: 
        {
            // Make this a pie chart.
            renderer: jQuery.jqplot.PieRenderer, 
            rendererOptions: {
                // Put data labels on the pie slices.
                // By default, labels show the percentage of the slice.
                showDataLabels: true
            }
        }, 
        legend: { show:true, location: 'e' }
    }
);

但是到目前为止，我无法将 $get 返回的数据转换为 jqplot 函数可接受的格式。

Answer 1

var field, value, data = [], str = "'some_field_name',10,'some_other_field,33";
var arr = str.split(',');
// just add 2 to each iteration to get every second item (last argument is i += 2):
for (var i = 0; i < arr.length; i += 2) {
  field = arr[i].replace(/'/g, ""); // replace ', because otherwise your string will be "'some_field_name'"
  value = parseInt(arr[i+1], 10); // parseInt because you want numbers, but got a string
  data.push([field, value]); // push into your data-array an array with your field and value
}

jsfiddle 在这里:http://jsfiddle.net/wLxyZ/