121
rated 0 times
[
128]
[
7]
/ answers: 1 / hits: 60987
/ 7 Years ago, thu, july 20, 2017, 12:00:00
So I have an array
const records = [
{
value: 24,
gender: BOYS
},
{
value: 42,
gender: BOYS
},
{
value: 85,
gender: GIRLS
},
{
value: 12,
gender: GIRLS
},
{
value: 10,
gender: BOYS
}
]
And I want to get the sum so I used the JavaScript array reduce function and got it right. Here is my code:
someFunction() {
return records.reduce(function(sum, record){
return sum + record.value;
}, 0);
}
With that code I get the value 173 which is correct. Now what I wanted to do is to get all the sum only to those objects who got a BOYS gender.
I tried something like
someFunction() {
return records.reduce(function(sum, record){
if(record.gender == 'BOYS') return sum + record.value;
}, 0);
}
But I get nothing. Am I missing something here? Any help would be much appreciated.
More From » arrays
