javascript - 将属性添加到数组中的最新对象

Question

所以，我正在从数据库中获取数据，并且我想将 id(字符串)和数据(对象)配对在一起。但是，forEach 会将数组中的每个对象替换为当前迭代的special.id。我只想将special.id 添加到数组中的最后一个对象，即special.data()。

//Push object into the masterEstablishments array
masterEstablishments.push(special.data());

//Add an id property to the establishment object in masterEstablishments
masterEstablishments.forEach(function(element) {
  element.id = special.id;
});

谢谢

Answer 1

尝试使用:

            //Push object into the masterEstablishments array
            masterEstablishments.push(special.data());
            masterEstablishments[masterEstablishments.length - 1].id = special.id;

或尝试使用:

  let obj = {};
  obj = special.data();
  obj.id = special.id;
  masterEstablishments.push(obj);

希望对你有帮助