CODEWITHSUNDEEP
javascriptarraysparent
Lutfor
Lutfor

Reputation: 307

Getting Parent Object, from nested value

what javascript code could you use to return person1 object providing id parameter 1 or person2 object providing id parameter 2? 

  {
        person1: 
        {
            id: 1,
            name: 'john'
        },
       person2: 
        {
            id: 2,
            name: 'doe'
        }
    }

Upvotes: 0

Views: 159

Answers (2)

amanuel2
amanuel2

Reputation: 4646

You can just loop through them using foreach.. Lets say we had your object here:

var obj = {
  person1: {
    id: 1,
    name: 'john'
  },
  person2: {
    id: 2,
    name: 'doe'
  }
}

Then you just loop and find the one.. so lets say you had the ID.

var ID = 2;
for (var i in obj) {
   if(obj[i].id == ID){
    result = obj[i]; //this is person2...
   }
}

I Hope this is what you are asking for.. your question wasnt very clear.

Upvotes: 1

Barmar
Barmar

Reputation: 780724

You can use a for loop to iterate through the properties of an object.

var obj = {
    person1: 
    {
        id: 1,
        name: 'john'
    },
    person2: 
    {
        id: 2,
        name: 'doe'
    }
};
var id_to_find = 1;
var name_found;
for (var name in obj) {
    if (obj[name].id == id_to_find) {
        name_found = name;
        break;
    }
}

Upvotes: 3

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