Sum object properties
importance: 5
We have an object storing salaries of our team:
let
salaries =
{
John
:
100
,
Ann
:
160
,
Pete
:
130
}
Write the code to sum all salaries and store in the variable sum
. Should be 390
in the example above.
If salaries
is empty, then the result must be 0
.
let
salaries =
{
John
:
100
,
Ann
:
160
,
Pete
:
130
}
;
let
sum =
0
;
for
(
let
key in
salaries)
{
sum +=
salaries[
key]
;
}
alert
(
sum)
;
// 390