我有一个看起来像这样的对象:
salesDetails:{ "1":{
"date":"06/22/2014",
"amount":"45",
"currency":"CAD",
"productID":"23",
"status":1},
"2":{
"date":"06/22/2014",
"amount":"120",
"currency":"USD",
"productID":"23",
"status":1},
"3":{
"date":"06/23/2014",
"amount":"100",
"currency":"USD",
"productID":"21",
"status":2},
"4":{
"date":"06/23/2014",
"amount":"250",
"currency":"CAD",
"productID":"25",
"status":1},
"5":{
"date":"06/23/2014",
"amount":"180",
"currency":"USD",
"productID":"24",
"status":1}
}
我想要做的是获得状态为“1”的所有货币的所有金额,并将其放在一个看起来像这样的对象中:
perCurrency: {
"CAD":{
"0":"45",
"1":"250"},
"USD":{
"0":"120",
"1":"180"}
}
我能够将所有货币都放在一个对象中,但我遇到了金额问题,对象的最后一笔金额与之前的金额重叠。我一直在{"CAD":{"1":"250"},"USD":{"1":"180"}}
这是我的代码到目前为止。
function countPerCurrency(){
var currencyArray = new Array();
var perCurrency = {};
var totalSales = Object.size(salesDetails);
for(var i=1; i <= totalSales; i++){
var currency = salesDetails[i]["currency"];
var amount = salesDetails[i]["amount"];
var status = salesDetails[i]["status"];
var totalCurrency = Object.size(currencyAmount[currency]);
var currencyCtr = {};
if(status == 1){
if(!inArray(currency, currencyArray)){
currencyArray.push(currency);
currencyCtr[totalCurrency] = amount;
perCurrency[currency] = currencyCtr;
} else {
var currencyAdd = {};
currencyAdd[totalCurrency] = amount;
perCurrency[currency] = currencyAdd;
}
}
}
}
我知道这看似简单,但我迷失在这里.. TIA! :)
答案 0 :(得分:3)
之前接受的答案使用了一组值,而您要求一个对象。这是一个对象版本:
var perCurrency = {};
var currencyCount = {};
Object.keys(salesDetails).forEach(function(key) {
var obj = salesDetails[key];
var currency;
if (obj.status == 1) {
currency = obj.currency;
// If this is first for this currency, add it to objects
if (!currencyCount[currency]) {
currencyCount[currency] = 0;
perCurrency[currency] = {};
}
// Add currency values
perCurrency[currency][currencyCount[currency]++] = obj.amount;
}
});
BTW,这与jQuery无关。
请注意, Object.keys 是ES5,因此可能需要针对旧版浏览器进行填充,请参阅MDN:Object.keys了解代码。
答案 1 :(得分:0)
尝试这样的事情
function countPerCurrency(){
var perCurrency = {};
var totalSales = Object.size(salesDetails);
for(var i=1; i <= totalSales; i++){
var currency = salesDetails[i]["currency"];
var amount = salesDetails[i]["amount"];
var status = salesDetails[i]["status"];
if(status == '1'){
if(perCurrency.hasOwnProperty(currency)){
// if currency already present than get currency array.
var currency_arr = perCurrency[currency];
// add new value to existing currency array.
currency_arr.push(amount);
}else{
// if currency not present than create currency array and add first value;
var currency_arr = [];
currency_arr.push(amount);
// add newly created currency array to perCurrency object
perCurrency[currency] = currency_arr;
}
}
}
console.log(perCurrency);
}
输出
perCurrency: {
"CAD":["45","250"],
"USD":["120","180"],
}
我创建了货币数组而不是键值对
答案 2 :(得分:0)
像这样更改你的代码,我简化了你的事情,
function countPerCurrency() {
var perCurrency = {};
var currencyArray = [];
for(i in salesDetails)
{
if(!perCurrency.hasOwnProperty(salesDetails[i].currency) && salesDetails[i].status === "1")
perCurrency[salesDetails[i].currency] = [];
if(salesDetails[i].status === "1")
{
currencyArray = perCurrency[salesDetails[i].currency];
currencyArray.push(salesDetails[i].amount);
perCurrency[salesDetails[i].currency] = currencyArray;
}
}
}
答案 3 :(得分:0)
对于迟到的对话感到抱歉,请尝试使用.each()
var CAD = new Array();
var USD = new Array();
$.each(salesDetails, function (i, value) {
if (value.status == 1) {
if (value.currency == "CAD") {
CAD.push(value.amount);
} else if (value.currency == "USD") {
USD.push(value.amount);
}
}
});
var perCurrency = {
"CAD": CAD,
"USD": USD
}