Delete same object in an array

Question

I am searching to delete duplicate object stored in my array. This object are sent in JSON. This is its structure :

{  
  "name":"root",
  "children":[  
    {  
      "name":"name1",
      "children":[  
        {  
          "name":"name1",
          "level":1
        }
      ]
    },
    {  
      "name":"name1",
      "children":[  
        {  
          "name":"name1",
          "level":1
        }
      ]
    },
    {  
      "name":"name2",
      "children":[  
        {  
          "name":"name2",
          "level":3
        }
      ]
    }
  ]
}

In this case, the first or second object called name1 should be delete because they are exactlly the same.

This is algorithm I use to delete the duplicate but it delete all the object in my array...

for (var z in player.children){
    var nameObject = playerchildren[z].name;
    //console.log(nameObject);
    for (var q in player.children){
        //console.log(player.children[q].name);
        if (nameObject == player.children[q].name){
            console.log(nameObject + " = " + myBubble.children[q].name);
           // delete player.children[z]; // Delete all ...
        } else {
            console.log(nameObject + " != " + player.children[q].name);
        }
    }
}
return player;

Thank for your help.

score 1 · Accepted Answer · answered May 06 '16 at 13:13

1

in your nested loop, you should skip the current object:

for (var z in player.children){
        var nameObject = playerchildren[z].name;
        //console.log(nameObject);
        for (var q in player.children){
            //console.log(player.children[q].name);
            if (nameObject == player.children[q].name){ 
                 // this is true if z == q. that's why all objects get deleted


for (var z in player.children){
            var nameObject = playerchildren[z].name;
            //console.log(nameObject);
            for (var q in player.children){
                //console.log(player.children[q].name);
                if ( q !== z && nameObject == player.children[q].name){ 
                     // now this should be better

answered May 06 '16 at 13:13

Regis Portalez

4,675
1
29
41

Ok thanks it works but I have null values now for the objet deleted. Is it possible to remove the null values in the loop ? – Anonymous May 06 '16 at 13:30
This may be of help: http://stackoverflow.com/questions/281264/remove-empty-elements-from-an-array-in-javascript – Sarath Chandra May 06 '16 at 13:34
this is another topic. please try to find an answer, and if there isn't, ask another question – Regis Portalez May 06 '16 at 13:36

score 1 · Answer 2 · edited May 23 '17 at 12:08

1

Firstly it's normal if your algorithm delete all the object because, your loop test firstly the current object

see this link to resolve your problem:Remove duplicates from an array of objects in javascript

edited May 23 '17 at 12:08

Community

1
1

answered May 06 '16 at 13:37

user192417

56
1
7

Delete same object in an array

2 Answers2