Remove value from an Object in JavaScript

Question

I have code like below. I would like to remove verse from verses object.

_self.verses.filter(verse => {
    Object.keys(verse).forEach(function(key) {
       if(! _self.recieved_translation.includes(key))
       {
         // I would like to remove this verse from verses                       
       }
    });
});

Possible duplicate of a duplicate - https://stackoverflow.com/questions/3455405/how-do-i-remove-a-key-from-a-javascript-object — Aseem Upadhyay, Jun 28 '18 at 12:15

score 2 · Accepted Answer · answered Jun 28 '18 at 12:14

2

_self.verses.filter(verse => {
    Object.keys(verse).forEach(function(key) {
       if(! _self.recieved_translation.includes(key))
       {
              delete verses[verses];                  
       }
    });
});

answered Jun 28 '18 at 12:14

mshouman

374
2
12

score 0 · Answer 2 · answered Jun 28 '18 at 12:15

0

use delete to remove items from obj

answered Jun 28 '18 at 12:15

Dee

70
7

score 0 · Answer 3 · answered Jun 28 '18 at 12:17

0

_self.verses.forEach(verse => delete verse.verse);

answered Jun 28 '18 at 12:17

Karan

12,059
3
24
40

score 0 · Answer 4 · answered Jun 28 '18 at 13:18

filter skips elements, for which its callback returns false. Just see if you have the problematic key and return according boolean.

_self.verses = _self.verses.filter(verse => {
    // We don't need foreach here, we just need the first key
    var keyWithoutTranslation = Object.keys(verse).find(function(key) {
       return !_self.recieved_translation.includes(key);
    });
    // Now the filter will do the rest
    return keyWithoutTranslation === undefined;
});

Remove value from an Object in JavaScript

4 Answers4