Javascript add objects in a loop

Question

Hi i want to know how you add all the values together in an object using for loop

var myBills = {
    myMumAndDad: 1000,
    myFamily: 2500,
    myPhone: 550,
    myTrain: 650,
    myTraining: 200,
    myInternet: 200,
    myAdobe: 200,
    myElectric: 400,
    myWeb: 100,
    myEditor: 100,
    myRent: 3000,
    myFood: 2000,
};

// Få lavet et loop til at + disse sammen
var allBills = myBills.myMumAndDad + myBills.myFamily + myBills.myPhone + myBills.myTrain + myBills.myTraining + myBills.myInternet + myBills.myAdobe + myBills.myElectric + myBills.myEditor + myBills.myWeb + myBills.myRent + myBills.myFood;

`var sum = 0; for(var i = 0; i < myBills.length; i++) { sum += myBills[i]; }` This will loop through each of the bills and add it to sum — Charlie Heflin, Oct 27 '17 at 20:09
@CharlieHeflin: I dont' think that's going to work, since myBills is an object and not an Array. — Jose A, Oct 27 '17 at 20:30

score 1 · Accepted Answer · answered Oct 27 '17 at 20:08

1

var sum = 0;
for(var key in myBills){
    sum += myBills[key];
}

answered Oct 27 '17 at 20:08

Parijat Purohit

921
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16

1

Beat me to it. Yes, that's it. I'd recommend to use const for key and let for sum. – Jose A Oct 27 '17 at 20:09
1

@JoseA yes definitely const and let will increase the efficiency.. Good that you pointed out, will help Thomas. :D – Parijat Purohit Oct 27 '17 at 20:12

Javascript add objects in a loop

1 Answers1