remove object inside array inside an object based on id in javascript

Question

as the title say i'm trying to remove an object inside an array inside an object based on an id. Please see my object below:

{"satisfied":[],
"support":
[
    {"id":187,"question":"supot1"}
],
"agree":
[
    {"id":891,"question":"asdff"},
    {"id":394,"question":"Dos"},
    {"id":495,"question":"Tres"}
],
"yesno":[],
"multichoice":
[
    {"id":785,"question":"multi1",
    "choices":["item1","item2", "item3"]},
    {"id":986,"question":"multi2",
    "choices":["item4", "item5", "item6"]}
],
"oneofmany":[]
}

For example, i'd like to delete {"id":891,"question":"asdff"}, how will i go about this?

yup, i'm adding objects based on category, if they are satisfied type, support type, agree type, yesno type...etc — Michelle Fernandez
– Michelle Fernandez, Commented Mar 21, 2019 at 13:51
i've searched a lot, but examples only offer removal of simple arrays — Michelle Fernandez
– Michelle Fernandez, Commented Mar 21, 2019 at 13:52

Jonas Wilms · Accepted Answer · 2019-03-21 13:51:41Z

0

To go over all those subarrays you could iterate over the values of the object:

 for(const array of Object.values(input)) {

Then in that array, search for an object that matches and splice it out if necessary:

  const toFind = 891;
  const index = array.findIndex(it => it.id === toFind);
  if(index !== -1) 
    array.splice(index, 1);
 }

answered Mar 21, 2019 at 13:51

Jonas Wilms

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Comments

Mohammad Ali Rony · Accepted Answer · 2019-03-21 14:33:18Z

0

Try this

var obj = {
  "satisfied":[],
  "support":
  [
      {"id":187,"question":"supot1"}
  ],
  "agree":
   [
      {"id":891,"question":"asdff"},
      {"id":394,"question":"Dos"},
      {"id":495,"question":"Tres"}
   ],
   "yesno":[],
   "multichoice":
    [
       {"id":785,"question":"multi1","choices":["item1","item2", "item3"]},
       {"id":986,"question":"multi2","choices":["item4", "item5", "item6"]}
    ],
    "oneofmany":[]
}

let id= {"id":891,"question":"asdff"}.id; //need to remove 
Object.keys(obj).forEach(function(key) {
  var index = obj[key].map(x => {return x.id;}).indexOf(id);
  if (index > -1) {
    obj[key].splice(index, 1);
  }
});

console.log(obj);

answered Mar 21, 2019 at 14:33

Mohammad Ali Rony

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Comments

Michelle Fernandez · Accepted Answer · 2019-03-21 15:46:18Z

0

i used lodash (_.remove), works fine

  var origArray = questions_list[$itemType];
   _.remove(origArray, function(n){
          return n.id == $itemId;
  });

answered Mar 21, 2019 at 15:46

Michelle Fernandez

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