title: How to count looping in each condition and store it into arrays?
body: <p>I have looping <code>for..</code> to summing some values and store it into arrays with certain conditions, but now I want to count how many items that loop has summed.<br/>
  e.g. I have 5 items in certain <code>tipe</code> : 1, 4, 6, 2, 7 and I sum it with loop so I can get 20, but how do I know how many items that loops has summed (in this example is 5 items).<br/>
  here are what I've made so far: <a href="http://jsfiddle.net/xKJn8/8/" rel="nofollow">http://jsfiddle.net/xKJn8/8/</a></p>
  
  <p>this is my looping:</p>
  
  <pre><code>var SumByTipe = {};
  
  for(i in data.GetReportIdResult){
      var currtipe = data.GetReportIdResult[i].tipe;
      if (currtipe in SumByTipe){
          for (j in data.GetReportIdResult[i]){
              if (j != "tipe" &amp;&amp; j != "mc"){
                  SumByTipe[currtipe][j + '_total'] += parseFloat(data.GetReportIdResult[i][j]);
                  SumByTipe[currtipe]['isi'] += 1;  //---I want to count how many items in every tipe (e.g. in ESL there are 5 items)---//                  
              }
          }
      }else{
          var firstSum = {};
          for (j in data.GetReportIdResult[i]){
              if (j != "tipe" &amp;&amp; j != "mc"){
                  firstSum[j + '_total'] = parseFloat(data.GetReportIdResult[i][j]);
              }
          }
          SumByTipe[currtipe]=firstSum;
      }
  }
  
  alert(SumByTipe['ESL']['isi']);
  </code></pre>
  
  <p>this is my items in json array:</p>
  
  <pre><code>var data = {
    "GetReportIdResult": [
      {
        "act_qty1": "834",
        "act_val1": "11",
        "acvqty": "0.99",
        "acvval": "0.84",
        "budqty": "84332",
        "budval": "1315",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "21.9",
        "cm_per2": "31.8",
        "cm_per3": "29.2",
        "cm_val1": "2",
        "cm_val2": "206",
        "cm_val3": "356",
        "mc": "Agen",
        "tipe": "ESL"
      },
      {
        "act_qty1": "17076",
        "act_val1": "186",
        "acvqty": "36.01",
        "acvval": "38.64",
        "budqty": "47416",
        "budval": "482",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "8.6",
        "cm_per2": "7.0",
        "cm_per3": "8.1",
        "cm_val1": "16",
        "cm_val2": "47",
        "cm_val3": "54",
        "mc": "Hotel &amp; Restaurant",
        "tipe": "ESL"
      },
      {
        "act_qty1": "30948",
        "act_val1": "299",
        "acvqty": "16.48",
        "acvval": "16.22",
        "budqty": "187788",
        "budval": "1841",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "-3.2",
        "cm_per2": "-3.1",
        "cm_per3": "-3.1",
        "cm_val1": "-10",
        "cm_val2": "-61",
        "cm_val3": "-55",
        "mc": "Institution",
        "tipe": "ESL"
      },
      {
        "act_qty1": "8358",
        "act_val1": "121",
        "acvqty": "37.96",
        "acvval": "35.26",
        "budqty": "22019",
        "budval": "342",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "26.7",
        "cm_per2": "28.4",
        "cm_per3": "30.1",
        "cm_val1": "32",
        "cm_val2": "128",
        "cm_val3": "155",
        "mc": "Lower Trade",
        "tipe": "ESL"
      },
      {
        "act_qty1": "53433",
        "act_val1": "943",
        "acvqty": "19.45",
        "acvval": "19.48",
        "budqty": "274742",
        "budval": "4844",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "31.2",
        "cm_per2": "31.2",
        "cm_per3": "31.2",
        "cm_val1": "295",
        "cm_val2": "1423",
        "cm_val3": "1567",
        "mc": "Modern Market",
        "tipe": "ESL"
      },
      {
        "act_qty1": "0",
        "act_val1": "0",
        "acvqty": "0.00",
        "acvval": "0.00",
        "budqty": "732",
        "budval": "13",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "0.0",
        "cm_per2": "34.5",
        "cm_per3": "34.8",
        "cm_val1": "0",
        "cm_val2": "9",
        "cm_val3": "15",
        "mc": "Agen",
        "tipe": "ESL500ML"
      },
      {
        "act_qty1": "156",
        "act_val1": "3",
        "acvqty": "0.00",
        "acvval": "0.00",
        "budqty": "0",
        "budval": "0",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "33.0",
        "cm_per2": "33.2",
        "cm_per3": "33.3",
        "cm_val1": "1",
        "cm_val2": "2",
        "cm_val3": "4",
        "mc": "Hotel &amp; Restaurant",
        "tipe": "ESL500ML"
      },
      {
        "act_qty1": "90",
        "act_val1": "2",
        "acvqty": "20.11",
        "acvval": "21.33",
        "budqty": "448",
        "budval": "8",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "39.4",
        "cm_per2": "32.8",
        "cm_per3": "37.8",
        "cm_val1": "1",
        "cm_val2": "1",
        "cm_val3": "2",
        "mc": "Lower Trade",
        "tipe": "ESL500ML"
      },
      {
        "act_qty1": "3535",
        "act_val1": "68",
        "acvqty": "20.57",
        "acvval": "20.63",
        "budqty": "17189",
        "budval": "331",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "39.7",
        "cm_per2": "40.8",
        "cm_per3": "40.3",
        "cm_val1": "27",
        "cm_val2": "140",
        "cm_val3": "166",
        "mc": "Modern Market",
        "tipe": "ESL500ML"
      },
      {
        "act_qty1": "2700",
        "act_val1": "29",
        "acvqty": "2.84",
        "acvval": "3.27",
        "budqty": "95040",
        "budval": "899",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "9.5",
        "cm_per2": "11.1",
        "cm_per3": "12.9",
        "cm_val1": "3",
        "cm_val2": "76",
        "cm_val3": "74",
        "mc": "Agen",
        "tipe": "UHT"
      },
      {
        "act_qty1": "3216",
        "act_val1": "35",
        "acvqty": "18.93",
        "acvval": "19.03",
        "budqty": "16993",
        "budval": "184",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "10.8",
        "cm_per2": "7.6",
        "cm_per3": "6.6",
        "cm_val1": "4",
        "cm_val2": "9",
        "cm_val3": "9",
        "mc": "Hotel &amp; Restaurant",
        "tipe": "UHT"
      },
      {
        "act_qty1": "10701",
        "act_val1": "105",
        "acvqty": "23.85",
        "acvval": "24.15",
        "budqty": "44872",
        "budval": "434",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "1.4",
        "cm_per2": "-0.6",
        "cm_per3": "-0.5",
        "cm_val1": "1",
        "cm_val2": "-3",
        "cm_val3": "-2",
        "mc": "Institution",
        "tipe": "UHT"
      },
      {
        "act_qty1": "5663",
        "act_val1": "65",
        "acvqty": "18.58",
        "acvval": "19.33",
        "budqty": "30487",
        "budval": "334",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "12.7",
        "cm_per2": "12.0",
        "cm_per3": "11.2",
        "cm_val1": "8",
        "cm_val2": "36",
        "cm_val3": "40",
        "mc": "Lower Trade",
        "tipe": "UHT"
      },
      {
        "act_qty1": "16637",
        "act_val1": "197",
        "acvqty": "18.60",
        "acvval": "18.38",
        "budqty": "89424",
        "budval": "1072",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "9.3",
        "cm_per2": "7.4",
        "cm_per3": "11.8",
        "cm_val1": "18",
        "cm_val2": "68",
        "cm_val3": "133",
        "mc": "Modern Market",
        "tipe": "UHT"
      },
      {
        "act_qty1": "84",
        "act_val1": "3",
        "acvqty": "2.10",
        "acvval": "2.10",
        "budqty": "4008",
        "budval": "132",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "50.9",
        "cm_per2": "52.9",
        "cm_per3": "51.0",
        "cm_val1": "1",
        "cm_val2": "3",
        "cm_val3": "110",
        "mc": "Agen",
        "tipe": "WHP"
      },
      {
        "act_qty1": "948",
        "act_val1": "30",
        "acvqty": "26.33",
        "acvval": "27.82",
        "budqty": "3600",
        "budval": "108",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "48.9",
        "cm_per2": "50.5",
        "cm_per3": "41.2",
        "cm_val1": "15",
        "cm_val2": "63",
        "cm_val3": "76",
        "mc": "Hotel &amp; Restaurant",
        "tipe": "WHP"
      },
      {
        "act_qty1": "2604",
        "act_val1": "71",
        "acvqty": "9.18",
        "acvval": "9.28",
        "budqty": "28360",
        "budval": "769",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "43.3",
        "cm_per2": "42.9",
        "cm_per3": "39.3",
        "cm_val1": "31",
        "cm_val2": "233",
        "cm_val3": "358",
        "mc": "Institution",
        "tipe": "WHP"
      },
      {
        "act_qty1": "6",
        "act_val1": "0",
        "acvqty": "3.33",
        "acvval": "4.26",
        "budqty": "180",
        "budval": "6",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "60.4",
        "cm_per2": "0.0",
        "cm_per3": "0.0",
        "cm_val1": "0",
        "cm_val2": "0",
        "cm_val3": "0",
        "mc": "Lower Trade",
        "tipe": "WHP"
      },
      {
        "act_qty1": "266",
        "act_val1": "11",
        "acvqty": "50.38",
        "acvval": "50.51",
        "budqty": "528",
        "budval": "21",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "48.6",
        "cm_per2": "48.8",
        "cm_per3": "49.2",
        "cm_val1": "5",
        "cm_val2": "14",
        "cm_val3": "17",
        "mc": "Modern Market",
        "tipe": "WHP"
      },
      {
        "act_qty1": "0",
        "act_val1": "0",
        "acvqty": "0.00",
        "acvval": "0.00",
        "budqty": "0",
        "budval": "0",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "0.0",
        "cm_per2": "5.1",
        "cm_per3": "5.5",
        "cm_val1": "0",
        "cm_val2": "9",
        "cm_val3": "6",
        "mc": "Agen",
        "tipe": "CHEESE1K"
      },
      {
        "act_qty1": "127",
        "act_val1": "8",
        "acvqty": "0.98",
        "acvval": "0.98",
        "budqty": "13000",
        "budval": "845",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "21.2",
        "cm_per2": "21.7",
        "cm_per3": "22.8",
        "cm_val1": "2",
        "cm_val2": "33",
        "cm_val3": "40",
        "mc": "Hotel &amp; Restaurant",
        "tipe": "CHEESE1K"
      },
      {
        "act_qty1": "0",
        "act_val1": "0",
        "acvqty": "0.00",
        "acvval": "0.00",
        "budqty": "0",
        "budval": "0",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "0.0",
        "cm_per2": "19.8",
        "cm_per3": "0.0",
        "cm_val1": "0",
        "cm_val2": "0",
        "cm_val3": "0",
        "mc": "Lower Trade",
        "tipe": "CHEESE1K"
      },
      {
        "act_qty1": "0",
        "act_val1": "0",
        "acvqty": "0.00",
        "acvval": "0.00",
        "budqty": "0",
        "budval": "0",
        "bulan1": "7 ",
        "bulan2": "6 ",
        "bulan3": "5 ",
        "cm_per1": "0.0",
        "cm_per2": "19.0",
        "cm_per3": "0.0",
        "cm_val1": "0",
        "cm_val2": "0",
        "cm_val3": "0",
        "mc": "Modern Market",
        "tipe": "CHEESE1K"
      }
    ]
  };
  </code></pre>