Javascript 如何在Meteor JS中存储成本数据，使其可以增加？

我有一份服务清单，列出了完成服务所需的相关成本和时间。当我将它们保存到数据库中时，对象如下所示：

cost: "1"
name: "Yawn"
time: "10"

我相信当我在Meteor方法中调用这些对象时，数字周围的括号不允许我的应用程序增加这些对象

我在插入时不断收到此错误：

> errorClass {stack: "Error↵    at m.(anonymous function) (http://localh…7f11e3eaafcbe13d80ab0fb510d25d9595e78de2:3735:17)", error: 409, reason: "MinimongoError: Cannot apply $inc modifier to non-number"

使用此功能添加服务：

Meteor.methods({
createService: function(postAttributes) {
var user = Meteor.user();

// ensure the user is logged in
if (!user)
  throw new Meteor.Error(401, "You need to login to post new stories");

// ensure the post has a title
if (!postAttributes.name)
  throw new Meteor.Error(422, 'Please fill in a name');

    // ensure the service has a cost
if (!postAttributes.cost)
  throw new Meteor.Error(422, 'Please fill in a cost');

    // ensure the post has a title
if (!postAttributes.time)
  throw new Meteor.Error(422, 'Please fill in a time');

console.log(postAttributes);

// pick out the whitelisted keys
var post = _.extend(_.pick(postAttributes, 'name'), {
  cost: postAttributes.cost,
  time: postAttributes.time,
  userId: user._id, 
  author: user.emails[0].address, 
  submitted: new Date().getTime()
});

var postId = Services.insert(post);

return postId;
}
});

 Appointments.update(postAttributes.appointmentId, { $inc : 
  { "appointmentTotal": service.cost} } );

我使用此函数递增：

Meteor.methods({
createService: function(postAttributes) {
var user = Meteor.user();

// ensure the user is logged in
if (!user)
  throw new Meteor.Error(401, "You need to login to post new stories");

// ensure the post has a title
if (!postAttributes.name)
  throw new Meteor.Error(422, 'Please fill in a name');

    // ensure the service has a cost
if (!postAttributes.cost)
  throw new Meteor.Error(422, 'Please fill in a cost');

    // ensure the post has a title
if (!postAttributes.time)
  throw new Meteor.Error(422, 'Please fill in a time');

console.log(postAttributes);

// pick out the whitelisted keys
var post = _.extend(_.pick(postAttributes, 'name'), {
  cost: postAttributes.cost,
  time: postAttributes.time,
  userId: user._id, 
  author: user.emails[0].address, 
  submitted: new Date().getTime()
});

var postId = Services.insert(post);

return postId;
}
});

 Appointments.update(postAttributes.appointmentId, { $inc : 
  { "appointmentTotal": service.cost} } );

---

我完全无法用数字格式而不是字符串来计算服务的成本和时间。

正如您所说，似乎您只需要将字符串转换为整数：

var post=u.extend（u.pick（posattributes，'name'）{
成本：parseInt（posttributes.cost），
时间：parseInt（posttributes.time），
userId:user.\u id，
作者：user.emails[0]。地址，
已提交：新日期（）.getTime（）
});