如何在Node.js中格式化Mongoose的日期?

I'm trying to change the format of the dates I'm getting from my Mongo database. Currently they look like this:

我想改变我从Mongo数据库得到的日期格式。目前它们看起来是这样的:

Fri Sep 16 2011 19:05:17 GMT+0900 (JST)

I've tried calling .toString('yyyy-MM-dd') on them but nothing changes. I don't know if they're Date objects or just raw strings.

我试过调用。tostring ('yyyy-MM-dd')，但是没有变化。我不知道它们是日期对象还是原始字符串。

I've tried checking the Mongoose manual and googling a bunch, but not found anything yet.

我试过查看Mongoose手册，在谷歌上搜了一大堆，但还是一无所获。

Any ideas?

什么好主意吗?

3 个解决方案

#1

you have to create a Date object first:

您必须首先创建一个日期对象:

var date = new Date(dateStr);  // dateStr you get from mongodb

var d = date.getDate();
var m = date.getMonth()+1;
// ...

#2

A modern way to do this is to use momentjs, both usable in node and in the browser, super useful and simple to use. For the current problem I solved it like this in node after following all the docs requirements :

一种现代的方法是使用momentjs，在node和浏览器中都可以使用，非常有用且使用简单。对于目前的问题，我按照文档的要求在node这样解决:

var moment = require('moment');
var fomatted_date = moment(photo.date_published).format('YYYY-DD-MM');

with photo.date_published directly coming from mongoose.

与照片。date_published直接来自mongoose。

#3

what about defining your schema like:

如何定义您的模式，比如:

var someSchema = new Schema({
    title: String,
    created: Date
});

s.t. the date is stored as a Date object in your mongoDB. As a result, when you read it back you'll have a proper Date object on which you can work with the available methods.

日期被存储为mongoDB中的一个日期对象。因此，当您将它读回来时，您将拥有一个合适的Date对象，您可以在该对象上使用可用的方法。

#1