Return Json with the attributes of a class without "_" in the initials

Question

have this following class javascript:

class Usuario {
  constructor() {
    this._nome = '';
    this._idade = '';
  }


  get nome() {
    return this._nome;
  }

  set nome( value ) {
    this._nome = value;
  }

  get idade() {
    return this._idade;
  }

  set idade( value ) {
    this._idade = value;
  }
}

When I return she saw json, she returns me the names with _ at first. I know this sign means that the attribute can only be used within the class itself, so I’d like to return the attribute names without this character.