将$get结果字符串转换为javascript数组

Turn $get result string into javascript array

本文关键字：javascript 数组 转换 字符串 get 结果      更新时间：2023-09-26

我希望使用jqplot插件(http://www.jqplot.com/tests/pie-donut-charts.php)来生成一个饼状图，但是我很难从我的$get函数中获得结果，jqplot函数将接受为可用的数据。

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状图的数据变量。

这是我的$。获取当前返回字符串的函数:

//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++;
    }

为方便参考，这里是jqplot函数，包括在开始处定义的'data'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' }
    }
);

然而，到目前为止，我无法将$get返回的数据转换为jqplot函数将接受的格式。

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 here: http://jsfiddle.net/wLxyZ/

您正在生成错误的数组。你应该直接从服务器发送JSON对象，这是推荐的和简单的，或者使你的解析脚本ok。

$.get("notesajax.php", {month:monthFilter, area:areaFilter}, function(data) {
var arr = data.split(",");
var results = [];
for (var i = 0; i < arr.length; i++) {
    var mini = new Array();
    mini.push(arr[i]);
    mini.push(arr[i+1]);
    results.push(mini);
}

我玩了你的代码，来到以下解决方案，有几个问题与你的原始代码，特别是如何构建你的迷你数组

var arr = ['some_field_name',10,'some_other_field',33];
var results = [];
for (var i = 0; i < arr.length; i+=2) {        
    var mini = ["'"+arr[i]+"'",+arr[i+1]];
    results.push(mini);
}
alert(results[0][0]);
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