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Correct way to filter out a specific key from an array of objects?

I have this array of objects...

[
  {
    "id": 1,
    "application": "Default Case Set",
    "errorSource": "CASEWORK",
    "message": 34,
    "stackTrace": 0,
    "date": 0,
    "user": 0
  },
  {
    "id": 2,
    "application": "Default",
    "errorSource": "CASEWORK",
    "message": 39,
    "stackTrace": 2,
    "date": 0,
    "user": 0
   }
]

I would like to create an array of ids that looks like this...

[1, 2]

What is the best way to do this?

Thanks!

about 4 years ago · Juan Pablo Isaza
1 answers
Answer question

0

Use Array.map to extract the id property value from each object.

const arr = [
  {
    "id": 1,
    "application": "Default Case Set",
    "errorSource": "CASEWORK",
    "message": 34,
    "stackTrace": 0,
    "date": 0,
    "user": 0
  },
  {
    "id": 2,
    "application": "Default",
    "errorSource": "CASEWORK",
    "message": 39,
    "stackTrace": 2,
    "date": 0,
    "user": 0
   }
]

const result = arr.map(e => e.id)
console.log(result)

about 4 years ago · Juan Pablo Isaza Report
Answer question
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