JavaScript：如何在for..loop迭代期間將新的列/行推送到JavaScript數組？

Question

我的服務響應如下，當我使用for ..循環迭代數組時，我想推送新的行/列。

服務回應

"message":
{
   "student" [

     {
       "name" : "student1", 
       "oDate" : "03/03/2016",
       "oTime" :  "5:00 PM"
     },
     {
       "name" : "student2", 
       "oDate" : "03/03/2016",
       "oTime" :  "6:00 PM"
},{
       "name" : "student3", 
       "oDate" : "03/03/2016",
       "oTime" :  "7:00 PM"
} ]        
     }

}     

var myArray =[];

for(var i=0; i<data.message.student.length; i++)
{
var sessionDate = a.oDate + a.oTime;
myArray.push(data.message.student[i]);
}

我如何將我的sessionDate推送到data.message.student [i]對象，並將其進一步推送到myArray中？

Answer 1

您可以使用Array#map()生成數組。

 var data = { message: { "student": [{ "name": "student1", "oDate": "03/03/2016", "oTime": "5:00 PM" }, { "name": "student2", "oDate": "03/03/2016", "oTime": "6:00 PM" }, { "name": "student3", "oDate": "03/03/2016", "oTime": "7:00 PM" }] } }, myArray = data.message.student.map(function (a) { a.sessionDate = a.oDate + ' ' + a.oTime; return a; }); document.write('<pre>' + JSON.stringify(myArray, 0, 4) + '</pre>'); 

Answer 2

我希望這個幫助

var myArray = [];

for(var i=0; i < data.message.student.length; i++) {
    data.message.student[i].sessionDate = a.oDate + a.oTime;
    myArray.push(data.message.student[i]);
}

問候。-