Simplified way to add up integer values from a JSON

Question

I have the following data structure

{
  metadata: {
    a: 0,
    b: 4,
    c: 1,
    d: 6
  }
}

I want to find a simple way to add all the variables in the metadata together without having to do them one at a time.. like metadata.a + metadata.b + metadata.c + metadata.d

I am hoping for a way to just add whatever variable exists in that

Any suggestions?

score 1 · Accepted Answer · answered Mar 19 '20 at 16:01

1

Simplified using ES6

const data = {
  metadata: {
    a: 0,
    b: 4,
    c: 1,
    d: 6
  }
}
const sum = Object.entries(data.metadata).reduce((sum, x) => sum+ x[1], 0)
console.log(sum)

answered Mar 19 '20 at 16:01

xdeepakv

7,835
2
22
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this is exactly what im looking for.. perfect!! – jaekie Mar 19 '20 at 16:09
thanks!! Hope! it helped u – xdeepakv Mar 19 '20 at 16:12

score 0 · Answer 2 · answered Mar 19 '20 at 15:56

0

You can use a simple for ... in loop for that

const metadata = {
  a: 0,
  b: 4,
  c: 1,
  d: 6
}

let sum = 0

for (let key in metadata) {
  sum += metadata[key]
}
console.log(sum)

answered Mar 19 '20 at 15:56

Ado

637
1
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Simplified way to add up integer values from a JSON

2 Answers2