dynamic data in pie high chart jquery

Question

i am using high chart to draw pie chart as flow

this is how i give static data this itemdata should be loaded with array dynamically Static intialization

var itemdata = [
                      ['aloogobi', 42.0],
                      ['pannermakhani', 26.8],
                      {
                          name: 'Cholle',
                          y: 14.8,
                          sliced: true,
                          selected: true
                      },
                      ['mattuerpaneer', 6.5],
                      ['Jaipuri', 8.2],
                      ['Kolapuri', 0.7]
                  ]; 

an i am giving dynamic as follow

 for(var i=0;i<categoryGroup.length;i++){
     var temp=[categoryGroup[i][1],7.5];
     itemdata=itemdata+[temp]+',';
}  

here categoryGroup is array that i want to fill in chart ,and after this foor loop i m using this in pie chart as follow but it show me last value with show single letter of last value in chart as below

Answer 1

use itemdata.push(temp); instead of itemdata=itemdata+[temp]+',';