Guidelines for combining inner objects with their parent in Javascript

I need assistance with using the filter function in Angular.js because it's not working on objects.

Is there a way to merge a nested object into its parent using Javascript?

For example, I have the following data structure:

{
  "data" : [ {
    "character" : {
      "realm" : 1,
      "displayName" : "John",
    },
    "points" : 1388.0,
    "wins" : 84,
    "losses" : 31
  }, {
    "character" : {
      "realm" : 1,
      "displayName" : "Steven",
    },
    "points" : 1363.0,
    "wins" : 96,
    "losses" : 24
  }, {
    "character" : {
      "realm" : 1,
      "displayName" : "Mark",
    },
    "points" : 1322.0,
    "wins" : 154,
    "losses" : 43
  }
]}

and I want to transform it into this format:

{
  "data" : [ {
    "realm" : 1,
    "displayName" : "John",
    "points" : 1388.0,
    "wins" : 84,
    "losses" : 31
  }, {
    "realm" : 1,
    "displayName" : "Steven",
    "points" : 1363.0,
    "wins" : 96,
    "losses" : 24
  }, {
    "realm" : 1,
    "displayName" : "Mark",
    "points" : 1322.0,
    "wins" : 154,
    "losses" : 43
  }
]}

If you have any suggestions or solutions, please let me know!

javascriptangularjsobjectmerge

Answer №1

If you want to transfer properties from one object to another in AngularJS, you can use the extend method (https://docs.angularjs.org/api/ng/function/angular.extend):

for (var i = 0; i < data.length; i++) {
    angular.extend(data[i], data[i].character) //copy properties from character to the parent object
    delete data[i].character; //remove the "character" key
}

Answer №2

Using Vanilla JavaScript:

let data = {
  "info" : [ {
    "user" : { "id" : 1, "username" : "Alice" },
    "score" : 1200.0,
    "wins" : 56,
    "losses" : 28
  }, {
    "user" : { "id" : 2, "username" : "Bob" },
    "score" : 1250.0,
    "wins" : 72,
    "losses" : 19
  }, {
    "user" : { "id" : 3, "username" : "Eve" },
    "score" : 1150.0,
    "wins" : 64,
    "losses" : 35
  }
]}

data.info.forEach(function(item) {
    let user = item.user;
    delete item.user;
    for(let key in user) {
        item[key] = user[key];
    }
});

console.log(data);

Answer №3

Implement

var data = {
  "players": [{
    "info": {
      "server": 1,
      "name": "John",
    },
    "rating": 1388.0,
    "wins": 84,
    "losses": 31
  }, {
    "info": {
      "server": 1,
      "name": "Steven",
    },
    "rating": 1363.0,
    "wins": 96,
    "losses": 24
  }, {
    "info": {
      "server": 1,
      "name": "Mark",
    },
    "rating": 1322.0,
    "wins": 154,
    "losses": 43
  }]
};
for (var key in data.players) {
  data.players[key].server = data.players[key].info.server; // store the server key to the object
  data.players[key].name = data.players[key].info.name; // store the name key to the object
  delete data.players[key].info; // remove info key

}

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