Check array of objects in lodash for property value

Question

Given the following

var content = [{
        "set_archived": false,
        "something": [{
            "id": "aa7bb3db-19a2-4ef6-5944-892edaaf53c3",
            "modified": "2016-12-01T18:23:29.743333Z",
            "created": "2016-12-01T18:23:29.743333Z",
            "archived": false
        }]
    },
    {
        "set_archived": true,
        "something": [{
            "id": "aa7bb3db-19a2-4ef6-5944-892edaaf53c3",
            "modified": "2017-01-30T19:42:29.743333Z",
            "created": "2017-01-30T19:42:29.743333Z",
            "archived": false
        }]
    }
];

Using Lodash, how would I determine if either set_archived or something.archived in the array of objects is equal to true?

So in this case, because the second object has set_is_archived that is true, then the expected response should be true. If all items are false in either object, then the response should be false.

Is there a reason you have to use lodash? There are plenty of ways of doing this in plain old JavaScript — Heretic Monkey
– Heretic Monkey, Commented Feb 1, 2017 at 17:59
Possible duplicate of Can _lodash test an array to check if an array element has a field with a certain value? — Heretic Monkey
– Heretic Monkey, Commented Feb 1, 2017 at 18:00
content.some(c => (c.set_archived || c.something.some(s => s.archived))) — Andreas
– Andreas, Commented Feb 1, 2017 at 18:04
something.archived is invalid with the given structure. What is set_is_archived? Do you mean set_archived? Be consistent. Also, most Lodash questions are similar to this one, search Stack Overflow (and the web) before asking. Look through the great Lodash documentation which have examples for each function. — Emile Bergeron
– Emile Bergeron, Commented Feb 1, 2017 at 18:25

cyr_x · Accepted Answer · 2017-02-01 18:02:35Z

6

Just use:

_.filter(content, o => o["set_archived"] || o.something[0].archived).length > 0;

or

_.some(content, o => o["set_archived"] || o.something[0].archived);

PlainJs:

content.some(o => o["set_archived"] || o.something[0].archived)

or

 content.filter(o => o["set_archived"] || o.something[0].archived).length > 0;

edited Feb 1, 2017 at 18:02

answered Feb 1, 2017 at 18:00

cyr_x

14.3k2 gold badges35 silver badges48 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Abhay Shiro · Accepted Answer · 2018-01-17 10:31:40Z

Considering the same object as the one in the question, there are couple of ways to find the solution to your problem mate.

var flag = false;
flag = content.some(function(c){
    if(c["set_archived"]){
    return true;
  }
});

console.log(flag)

or

    var flag = false;
    flag = content.some(function(c){
        if(c["set_archived"] || c.something[0].archived){
        return true;
      }
    });

    console.log(flag)

The above snippet will result true if atleast one of the object of the array have ["set_archived"] property true and it will return false if all the objects of the array has ["set_archived"] as false. (I could have said vice-versa)

The some() method tests whether some element in the array passes the test implemented by the provided function.

The every() method tests whether all elements in the array pass the test implemented by the provided function.

If you are looking for a stricter way I recon you go ahead with every().

Nenad Vracar · Accepted Answer · 2017-02-01 18:02:37Z

1

You can just use some() in plain javascript.

var content = [{
  "set_archived": false,
  "something": [{
    "id": "aa7bb3db-19a2-4ef6-5944-892edaaf53c3",
    "modified": "2016-12-01T18:23:29.743333Z",
    "created": "2016-12-01T18:23:29.743333Z",
    "archived": false
  }]
}, {
  "set_archived": true,
  "something": [{
    "id": "aa7bb3db-19a2-4ef6-5944-892edaaf53c3",
    "modified": "2017-01-30T19:42:29.743333Z",
    "created": "2017-01-30T19:42:29.743333Z",
    "archived": false
  }]
}];

var result = content.some(function(e) {
  return e.set_archived === true || e.something[0].archived === true
})
console.log(result)

answered Feb 1, 2017 at 18:02

Nenad Vracar

122k16 gold badges160 silver badges184 bronze badges

Comments

Kousha · Accepted Answer · 2017-02-01 18:05:24Z

0

You don't need lodash for this. You can do this with pure JS, using filter:

content.filter(i => i.set_archived || i.something.archied)

answered Feb 1, 2017 at 18:05

Kousha

36.7k60 gold badges191 silver badges318 bronze badges

Collectives™ on Stack Overflow

Check array of objects in lodash for property value

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related