Question

I’m using the jqPlot library to build charts. I’m using some JS to fetch a JSON file, build a string using values from the JSON file, convert it to a nested array (the only format that jqPlot likes) and then passing to jqplot. jqPlot is reading the arry just fine and is plotting the correct values, but its adding a 0 value at the end.

Here’s the string code:

$(function () {
    $.getJSON("test.json", chartData);
    function chartData(data) {
                $.each(data.values, function(index,val){ 
                    chartValues += val + ",";
                });
            };

here’s the code that converts it into a nested array:

var temp = new Array();
temp = chartValues.split(',');
var temp2 = new Array(temp);
alert(temp2);

So when temp2 is passed to jqplot it adds a zero, but when I pass it an identical nested array called test that is declared manually, it doesn’t add the zero. Here they are for comparison:

var test = [[12,32,21,23,34,43,52,86,25,]];

and here’s temp2

[[12,32,21,23,34,43,52,86,25,]]

Any ideas? I’d also appreciate any help with my logic in this, as I feel like I could be creating the nested array more elegantly.

Answer 1

Removing the last character in the string (before converting to an array) was the solution in this case.

newStr = chartValues.substring(0, chartValues.length-1);