How to get values from an Object that have more objects in javascript

Question

I have a global variable var room = {} when i create a rooms it will go there and i will have the object like this

{
  '4bea542f-147c-4763-ab1c-bb6c40b1392e': {
    private: false,
    users: {
      btrJ7946MkjFSz_zAAAA: [Object],
      'qe_1igD7Q-RbDWc1AAAC': [Object]
    },
    gameS: false,
    nextUser: 'btrJ7946MkjFSz_zAAAA',
    timer: null,
    round: 0,
    winner: false,
    alreadyGuess: [],
    timerStartedAt: 0,
    settings: { gameStarted: false, time: null }
  },
  'e6ea6785-e522-4b8c-aeb8-b2551e89c895': {
    private: false,
    users: {
      'n5BODsuqAWb5Y-WAAAAD': [Object],
      paf4cWgX08Qi_8m5AAAE: [Object]
    },
    gameS: false,
    nextUser: 'n5BODsuqAWb5Y-WAAAAD',
    timer: null,
    round: 0,
    winner: false,
    alreadyGuess: [],
    timerStartedAt: 0,
    settings: { gameStarted: false, time: null }
  }
}

How can i access these objects with different names like '4bea542f-147c-4763-ab1c-bb6c40b1392e' and maybe get the ones with values private = false

Object.values()

VLAZ
– VLAZ

2021-04-09 18:37:38 +00:00
Commented Apr 9, 2021 at 18:37 — VLAZ
– VLAZ, Commented Apr 9, 2021 at 18:37
it should be Object.Keys(room)

Himanshu Saxena
– Himanshu Saxena

2021-04-09 18:39:33 +00:00
Commented Apr 9, 2021 at 18:39 — Himanshu Saxena
– Himanshu Saxena, Commented Apr 9, 2021 at 18:39
Object.values(room).filter(e => e.private === false)

Sølve
– Sølve

2021-04-09 18:43:39 +00:00
Commented Apr 9, 2021 at 18:43 — Sølve
– Sølve, Commented Apr 9, 2021 at 18:43

Daniel · Accepted Answer · 2021-04-09 18:43:31Z

2

Depends what you want to accomplish, striclty speaking to your question Object.values() is probably the easiest, but it won't keep the key, which you might be interested in keeping.

to get the keys, use keys

var publicRoomsIds = Object.keys(rooms).filter(function (key) {
  var room = rooms[key];
  return (room.private === false);
});

to get the values (without keys) use values

var publicRooms = Object.values(rooms).filter(function (room) {
  return (room.private === false);
});

var rooms = {
  "4bea542f-147c-4763-ab1c-bb6c40b1392e": {
    private: false,
  },
  "e6ea6785-e522-4b8c-aeb8-b2551e89c895": {
    private: true,
  },
  "e6ea6785-3321-4b8c-aeb8-b2551e89c895": {
    private: false,
  },
  "e6ea6785-7663-4b8c-aeb8-b2551e89c895": {
    private: true,
  },
};

var publicRoomsIds = Object.keys(rooms).filter(function (key) {
  var room = rooms[key];
  return (room.private === false);
});

var publicRooms = Object.values(rooms).filter(function (room) {
  return (room.private === false);
});

console.log(publicRoomsIds);
console.log(publicRooms);

answered Apr 9, 2021 at 18:43

Daniel

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3 Comments

VLAZ Over a year ago

Just use Object.entries() if you need both the keys and values.

Daniel Over a year ago

👍@VLAZ, I find Object.entries is a better replacement instead of using map on Object.keys. For filtering it doesn's lend itself as-well.

VLAZ Over a year ago

Object.entries(obj).filter(([, room]) => room.private === false) or even Object.entries(obj).filter(([, {private}]) => !private)

Unmitigated · Accepted Answer · 2021-04-09 18:40:51Z

You can filter over Object.values.

const o = { '4bea542f-147c-4763-ab1c-bb6c40b1392e': { private: false, users: { btrJ7946MkjFSz_zAAAA: [Object], 'qe_1igD7Q-RbDWc1AAAC': [Object] }, gameS: false, nextUser: 'btrJ7946MkjFSz_zAAAA', timer: null, round: 0, winner: false, alreadyGuess: [], timerStartedAt: 0, settings: { gameStarted: false, time: null } }, 'e6ea6785-e522-4b8c-aeb8-b2551e89c895': { private: false, users: { 'n5BODsuqAWb5Y-WAAAAD': [Object], paf4cWgX08Qi_8m5AAAE: [Object] }, gameS: false, nextUser: 'n5BODsuqAWb5Y-WAAAAD', timer: null, round: 0, winner: false, alreadyGuess: [], timerStartedAt: 0, settings: { gameStarted: false, time: null } } };
const res = Object.values(o).filter(x => !x.private);
console.log(res);

.as-console-wrapper{top:0;max-height:100%!important}

If you also want the key, you could use Object.keys or Object.entries.

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