angular.module('myApp')
  .controller('BillDetail3Ctrl', function ($scope, billDetail3) {

    $scope.tableData = [];
    $scope.hourCount = 0;

    billDetail3.getMetList().then(function(data){

        var no = 0;
        for (var i = 0; i < data.length; i++) {
            for (var j = 0; j == data[0].d.currA.length; j++) {
                $scope.tableData.push({
                    'No': ++no,
                    '_id': data[i]._id,
                    'hourtag': data[i].d.hourtag,
                    'currA': data[i].d.currA[j]
                });
            }
        }

        $scope.hourCount = no;
    }, function(){

    });
  });

[
  {
    "_id": "100010001_20082015_0",
    "_rev": "8-e72619f2c6c05aac2e3692f1ea77eb0f",
    "d": {
      "uSN": "100010001",
      "timetag": 20082015,
      "hourtag": 0,
      "currA": {
        "0": 0,
        "1": 2,
        "2": 5,
        "3": 6,
        "4": 2.3
      },
      "currB": {
        "0": 10,
        "1": 23,
        "2": 52,
        "3": 61,
        "4": 12.3
      },
      "currABC": {
        "0": 0.1,
        "1": 2.2,
        "2": 5.2
      },

<tr ng-repeat="pop in tableData">
       <td>{{pop.No}}</td>
       <td>{{pop._id}}</td>
       <td>{{pop.hourtag}}</td>
       <td>{{pop.currA}}</td>  //This is doesn't work
 </tr>

<tr ng-repeat="pop in tableData">
       <td>{{pop.No}}</td>
       <td>{{pop._id}}</td>
       <td>{{pop["d"].hourtag}}</td>
       <td>{{pop["d"].currA}}</td>
 </tr>