Convert array to an array object with some modifications

Question

i'm pretty beginner in the JavaScript and I really need help to convert an array to an array object. There are many examples here in stackOverflow, but I need some modidfication during this process, which is why I couldn't do anything

For example I have:

data = [{id: 21, name: "jack"} , {id: 185, name: "yas"}]

and I need to convert it with something like that (id key change to student_id, and present = true, should be added), and the length of this array is dynamic and will change over time.

[
  {
    "student_id" : 21,
    "present" = true
   },
   {
    "student_id" : 185,
    "present" = true
   }  
]

I need to add these array object to:

 const data: any = { 
    here....
  };

your help will be much appreciated.

Your example data is not a valid JavaScript data structure. Arrays do not have keys — Phil
– Phil, Commented Aug 4, 2021 at 0:31

Phil · Accepted Answer · 2021-08-04 00:34:36Z

1

Assuming your data actually looks more like this

data = [{id: 21, name: "jack"}, {id: 185, name: "yas"}]

This is a simple matter of mapping the array to a new format with the properties you want

const data = [{id: 21, name: "jack"}, {id: 185, name: "yas"}]

const newData = data.map(({ id }) => ({
  student_id: id,
  present: true
}))

console.log(newData)

answered Aug 4, 2021 at 0:34

Phil

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1 Comment

Martin sku Over a year ago

I can't thank you enough, after a tough day, you saved me. Thanks

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