Sum of values in array of objects without reduce function
Hello all,
I stumbled upon a situation where I have to find out a sum of a certain key in the objects residing in an array without reducing the objects? What I mean to say is, here is the input:
[
{
key1: value1,
key2: 10
},
{
key1: value2,
key2: 20
},
{
key1: value3,
key2: 30
}
]
The output that I am expecting should look like:
[
{
key1: value1,
key2: 10,
sum: 60
},
{
key1: value2,
key2: 20,
sum: 60
},
{
key1: value3,
key2: 30,
sum: 60
}
]
The total sum of key 2 values should be pushed into each object as a new key.
Can some one please suggest how to deal with this? Reducing won’t be the optimal solution as it would discard the objects and just add a new object with the total sum.
Thanks.
You can use merge function too.
Community_Example_2021_05_11.slp (3.5 KB)
$group.map(x=>x.merge({“sum”:$group.map(item => item.key2).reduce((accum, currentValue) => accum + currentValue)}))
