code: function mergeObject(target, source, create) {
    if (!source || !target) return;
    for (let pn in source) {
      if (_.has(target, pn) || create)
        target[pn] = source[pn];
    }
  }
docs: Copia i valori (e le proprietà) dell'oggetto source in target
  @param {object} target
  @param {object} source
  @param {boolean} [create]