JS ES6 Correct way to filter object by array of keys

Question

I would like to take an array of objects and filter each object to only return the properties where the key matches an item in an array.

For example:

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Answer 1

You can simply loop over keys and build a new object which contains only those keys and respective values

const myKeys = ['key_1', 'key_3'];
const myArray = [{key_1: 'Some Value A',key_2: 'Some Other Value A',key_3: 'Some Final Value A',},{key_1: 'Some Value B',key_2: 'Some Other Value B',key_3: 'Some Final Value B',},{key_1: 'Some Value C',key_2: 'Some Other Value C',key_3: 'Some Final Value C',},];

let final = myArray.map(v => {
  return myKeys.reduce((op, key) => {
    op[key] = v[key]
    return op
  }, {})
})

console.log(final)