如何将格式更改为字符串中的数字，但数组中的第一行除外

Question

Hi I have google chart with following data,

$scope.datax =[
       ["Release Date","R1","R2","R3"],
          ["Mon Apr 11 00:00:00 IST 2016","20","13","70"],
          ["Wed May 11 00:00:00 IST 2016","20","13","60"],
          ["Sat Jun 11 00:00:00 IST 2016","20","13","50"]
       ]

I need this format to like following i,e numbers should not contain quotes " ",

$scope.datax =[
           ["Release Date","R1","R2","R3"],
              ["Mon Apr 11 00:00:00 IST 2016", 20, 13, 70],
              ["Wed May 11 00:00:00 IST 2016", 20, 13, 60],
              ["Sat Jun 11 00:00:00 IST 2016", 20, 13, 50]
           ]

It will be really good if this can be done using any of format spcecifiers function of google chart only rather than iterating it again. Here is my working fiddle with dummy data without double quets "", working Demo and this is demo with strings as numbers Demo with original data

I cant change data because its coming from server call and I am adding rows based on clicks made by user. Please anyone share you idea or fiddle. Thanks in advance.

Answer 1

New solution, not that agressive in converting:

 $scope.datax=$scope.datax.map(row=>row.map(e=>+e||e));

Old solution, wich also converted dates...

$scope.datax=$scope.datax.map(row=>row.map(e=>parseInt(e,10)||e));

---

the problem noted in the comment is from the fn shorthand =>

try replacing with regular function...

$scope.datax=$scope.datax.map(function (row) {
  return row.map(function (e) {
    return +e||e;
  });
});