我已经循环for..对一些值求和并将其存储到具有特定条件的数组中，但现在我想计算循环已求和的项目数。
例如，我有 5 个项目tipe：1、4、6、2、7，我用循环求和，所以我可以得到 20，但我怎么知道循环求和了多少项目（在这个例子中是 5 个项目）。
这是我到目前为止所做的：http: //jsfiddle.net/xKJn8/8/
这是我的循环：
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" && 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" && j != "mc"){
firstSum[j + '_total'] = parseFloat(data.GetReportIdResult[i][j]);
}
}
SumByTipe[currtipe]=firstSum;
}
}
alert(SumByTipe['ESL']['isi']);
这是我在 json 数组中的项目：
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 & 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 & 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 & 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 & 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 & 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"
}
]
};