JavaScript Check, whether an array contains an object with id that matches list of ids check whether array a is a permutation,check whether array

is there an elegant way to determine, whether an array like this:

[
  {id: 1, value: false},
  {id: 2, value: true},
  {id: 3, value: false},
  {id: 4, value: true},
  {id: 5, value: true}
]

contains an item with an id that is listed in another array like this:

[1,5]

In this case only these values should be returned:

  {id: 1, value: false},
  {id: 5, value: true}

I was trying to use includes(), but it's not working:

let array = [
  {id: 1, value: false},
  {id: 2, value: true},
  {id: 3, value: false},
  {id: 4, value: true},
  {id: 5, value: true}
];

array.includes([1,5])
Answer:1

I'd suggest you use a Set. Since you are searching your data for specific keys, this will have much better performances on large search arrays:

const data = [
  {id: 1, value: false},
  {id: 2, value: true},
  {id: 3, value: false},
  {id: 4, value: true},
  {id: 5, value: true}
]

const search = (data, terms) => {
  terms = new Set(terms)
  return data.filter(({ id }) => terms.has(id))
}

console.log(search(data, [1, 5]))
Answer:2

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