Unable to get dynamic data into Jquery pie chart

Question

Not able to set dynamic data into my pie chart, please look into my code. Hard coded code is working fine but dynamic data has an issue.

$(contact_listddd).each(function(index, data) {
                        total_kra=data.graph_count;
                        kra_type=data.kra_type;
                        abc+= '{name: "'+kra_type+'",y: '+total_kra+'},';
                     });

var result1 = abc.substring(0, abc.length-1);

                     $('#container2').highcharts({
                            chart: {
                                plotBackgroundColor: null,
                                plotBorderWidth: null,
                                plotShadow: false,
                                type: 'pie'
                            },
                            title: {
                                text: 'Browser market shares January, 2015 to May, 2015'
                            },
                            tooltip: {`enter code here`
                                pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
                            },
                            plotOptions: {
                                pie: {
                                    allowPointSelect: true,
                                    cursor: 'pointer',
                                    dataLabels: {
                                        enabled: false
                                    },
                                    showInLegend: true
                                }
                            },
                            series: [{
                                name: 'Brands',
                                colorByPoint: true,
                                data: [result1]
                            }]

                        });

If instead of result1 I hard code the data then it works fine. example below

series: [{
          name: 'Brands',
          colorByPoint: true,
          data: [{name: 'Firefox', y: 10.38 }, {name: 'Safari',y: 4.77}]
        }]

Answer 1

Data should contain an array of objects, so instead of storing string representation of objects, write like this:

var abc = [];

$(contact_listddd).each(function(index, data) {
                    total_kra=data.graph_count;
                    kra_type=data.kra_type;
                    abc.push({ name: kra_type, y: total_kra });
                 });

And then insert the array to the chart data

series: [{
  name: 'Brands',
  colorByPoint: true,
  data: abc
}]