Insert more values inside a variable [closed]

            var $e = $(e.currentTarget);
            var eData = $e.data();

            var personagem = this.model.get('personagens').get({'id': eData.personagemId});

            var candidatos = personagem.get('candidatos');

I need to put another attribute of the character backbonemodel within the variable candidates without changing the values that are already there, I already tried to use the get again, but it overwrites the values that already exist within the variable, there is some way to insert more a value inside the candidate var without changing the values that are already in it?