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[英]$.each is only iterating through the last item in my array…Why is this happening?
[英]Iterating array for each item in javascript
我有一個對象數組,我想循環遍歷一次 。 這是javascript的代碼。
data.projectModelList.sum = function (prop) {
var total = 0;
for (var i = 0, _len = this.length; i < _len; i++) {
total += this[i][prop];
}
return total;
}
vm.dataTotal = [data.projectModelList.sum("budget"),
data.projectModelList.sum("tax"),
data.projectModelList.sum("money"),
data.projectModelList.sum("balance"),
data.projectModelList.sum("amount"),
data.projectModelList.sum("current"),
data.projectModelList.sum("after"),
data.projectModelList.sum("discount")]
當我循環瀏覽時,我得到的預算,稅收,金錢,余額,金額,當期,以后,折扣都超過1。我只想循環瀏覽,然后結果必須是每個項目都顯示一次且不能再顯示一次。 我知道我需要在for循環中更改某些內容,但我不知道該怎么做。
親切的問候
編輯:
模型項
public class ProjectDashBoardModel
{
public decimal budget { get; set; }
public decimal tax{ get; set; }
public decimal money{ get; set; }
public decimal balance{ get; set; }
public decimal amount{ get; set; }
public decimal current{ get; set; }
public decimal after{ get; set; }
public decimal discount{ get; set; }
}
public class ProjectDashboard
{
public Guid Id { get; set; }
public string ProjectLogo { get; set; }
public string LastMutatedBy { get; set; }
public DateTime LastMutatedDate { get; set; }
public List<ProjectDashBoardModel> ProjectModelList { get; set; }
}
您可以更改sum
函數以返回一個具有所有 sum作為屬性的對象-這意味着您只需要循環一次數組即可。
data.projectModelList.sum = function (props) {
var total = {};
for (var i = 0, _len = this.length; i < _len; i++) {
for(var j=0;j<props.length;i++){
var prop = props[j];
if(total[prop] === undefined){
total[prop] = 0;
}
total[prop] += this[i][prop];
}
}
return total;
}
您可以使用所需的所有屬性的數組來調用它:
var sums = data.projectModelList.sum(['budget','tax','money']);
然后,您將使用點或括號符號讀取總和
var budgetTotal = sums.budget;
var moneyTotal = sums['money'];
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