[英]Turn $get result string into javascript array
我正在寻找使用jqplot插件( http://www.jqplot.com/tests/pie-donut-charts.php )来生成饼图,但是我很难从$ get函数获取结果jqplot函数将可接受的数据。
您可以在上面的jqplot链接中看到如何创建显示饼图的数据变量。
这是我的$ .get函数,当前返回一个字符串:
//data is returned as a string: 'some_field_name',10,'some_other_field,33 etc
$.get("notesajax.php", {month:monthFilter, area:areaFilter}, function(data) {
var arr = data.split(",");
var results = [];
for (var i = 0; i < arr.length; i++) {
mini = [];
mini[arr[i]] = "'"+arr[i]+"',"+arr[i+1];
results.push(mini);
i++;
}
为了便于参考,这里是jqplot函数,该函数在开始时包括一个已定义的“ data”变量,以说明jqplot期望如何接收数据。
//this variable is just for illustrative purposes
var data = [
['Heavy Industry', 12],['Retail', 9], ['Light Industry', 14],
['Out of home', 16],['Commuting', 7], ['Orientation', 9]
];
var plot1 = jQuery.jqplot ('chartdiv', [results],
{
seriesDefaults:
{
// Make this a pie chart.
renderer: jQuery.jqplot.PieRenderer,
rendererOptions: {
// Put data labels on the pie slices.
// By default, labels show the percentage of the slice.
showDataLabels: true
}
},
legend: { show:true, location: 'e' }
}
);
但是到目前为止,我无法将$ get返回的数据转换成jqplot函数可以接受的格式。
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在这里: http : //jsfiddle.net/wLxyZ/
您正在生成错误的数组。 您应该直接从服务器发送回JSON对象(建议这样做既简单又方便),或者使解析脚本正常运行。
$.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);
}
我玩过您的代码,并提出以下解决方案,您的原始代码存在一些问题,尤其是关于如何构造迷你数组的问题
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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