Skip to content

how to filter based on two values from the array of array

I have a bunch array of objects with participants and messages, I want to filter the object with the below array of two participants, can anyone help with this

this is the example participnats of array :

["61badffe4ccf060b329441e0","61bc33a84ccf060b32944354"]

bunch of sample messages and participants :

  {
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61bae01b4ccf060b329441ef"
    ],
    "_id": "61bae0394ccf060b329441fb",
  },
  {
    "messages": [],
    "participants": [
      "61bae1014ccf060b3294420e",
      "61bae01b4ccf060b329441ef"
    ],
    "_id": "61bb230c4ccf060b3294421c"
  },
  {
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61bc33a84ccf060b32944354"
    ],
    "_id": "61d476dff651471663a72971",
  },
  {
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61e54b82eab592e7fef65656"
    ],
    "_id": "61e54ba3eab592e7fef6567a",
]





**expected below object after filter participants:** 

```{
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61bc33a84ccf060b32944354"
    ],
    "_id": "61d476dff651471663a72971",
  },

Answer

You might wanna use Array.filter() and also in your case you should check every element from that array which should match your criteria.

const input = [{
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61bae01b4ccf060b329441ef"
    ],
    "_id": "61bae0394ccf060b329441fb",
  },
  {
    "messages": [],
    "participants": [
      "61bae1014ccf060b3294420e",
      "61bae01b4ccf060b329441ef"
    ],
    "_id": "61bb230c4ccf060b3294421c"
  },
  {
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61bc33a84ccf060b32944354"
    ],
    "_id": "61d476dff651471663a72971",
  },
  {
    "messages": [],
    "participants": [
      "61badffe4ccf060b329441e0",
      "61e54b82eab592e7fef65656"
    ],
    "_id": "61e54ba3eab592e7fef6567a",
    }
];

const filterByParticipants = ["61badffe4ccf060b329441e0","61bc33a84ccf060b32944354"];
const output = input.filter(el => el.participants.every(el => filterByParticipants.includes(el)));

console.log(output);