Filter object of object based on value js

Question

I have this object of objects, I am trying to get the items which include a social

const events = {
    'event-1': { id: 'event-1', channel: 'facebook'},
    'event-2': { id: 'event-2', channel: 'twitter'},
    'event-3': { id: 'event-3', channel: 'slack'},
  };

I need to get for example event that has facebook and slack Any ideas how filter works on javascript for objects not array?

Thank you

I need to filter from events object, I am doing sorting, so I need when I check facebook to get events that have facebook — lilo
– lilo, Commented Jul 22, 2021 at 13:58

Jamiec · Accepted Answer · 2021-07-22 14:55:00Z

5

You can turn it to entries, filter them, and turn it back to an object:

const events = {
    'event-1': { id: 'event-1', channel: 'facebook'},
    'event-2': { id: 'event-2', channel: 'twitter'},
    'event-3': { id: 'event-3', channel: 'slack'},
  }
  
const result = Object.fromEntries( 
    Object.entries(events).filter( ([key,value]) => value.channel == "facebook" || value.channel == "slack")
);

console.log(result);

You can check a list of channels by putting them in an array and using includes

const events = {
    'event-1': { id: 'event-1', channel: 'facebook'},
    'event-2': { id: 'event-2', channel: 'twitter'},
    'event-3': { id: 'event-3', channel: 'slack'},
  }
  
const channels = ["facebook","slack"];
const result = Object.fromEntries( 
    Object.entries(events).filter( ([key,value]) => channels.includes(value.channel))
);

console.log(result);

edited Jul 22, 2021 at 14:55

answered Jul 22, 2021 at 13:58

Jamiec

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1 Comment

lilo Over a year ago

is there a way instead of value.channel || value.channel to do it something like value.channel = ['facebook', 'twitter']

Alireza Ahmadi · Accepted Answer · 2021-07-22 14:52:59Z

2

Try this:

const events = {
            'event-1': { id: 'event-1', channel: 'facebook' },
            'event-2': { id: 'event-2', channel: 'twitter' },
            'event-3': { id: 'event-3', channel: 'slack' },
        };
        
var val = Object.values(events).filter(t=>t.channel == 'facebook' || t.channel == 'slack');

console.log(val);

edited Jul 22, 2021 at 14:52

answered Jul 22, 2021 at 14:01

Alireza Ahmadi

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3 Comments

lilo Over a year ago

thanks, what if I want to include facebook + slack I tried ['facebook', 'slack'] but no luck

Alireza Ahmadi Over a year ago

@lilo Just use || operator. you know filter needs Boolean expression, So you can use || or includes. I updated my answer

Alireza Ahmadi Over a year ago

@lilo if you want to use ['facebook', 'slack'] you can use this way: Object.values(events).filter(t => ['facebook', 'slack'].includes(t.channel));

AdityaParab · Accepted Answer · 2021-07-22 14:14:58Z

0

Maintain a separate variable that holds all the social platforms and filter events array based on that...

const socialPlatforms = [
  'facebook',
  'slack'
];

const events = {
  'event-1': { id: 'event-1', channel: 'facebook'},
  'event-2': { id: 'event-2', channel: 'twitter'},
  'event-3': { id: 'event-3', channel: 'slack'},
};

const socialEvents = Object.values(events)
  .filter(event => socialPlatforms.includes(event.channel))
  .map(event => event.id);

console.log(socialEvents);

/*

[ 'event-1', 'event-3' ]

*/

answered Jul 22, 2021 at 14:14

AdityaParab

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