Javascript 如何在 Node.js 中格式化来自 Mongoose 的日期？
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How do I format dates from Mongoose in Node.js?
提问by Ben Humphreys
I'm trying to change the format of the dates I'm getting from my Mongo database. Currently they look like this:
我正在尝试更改从 Mongo 数据库中获取的日期格式。目前它们看起来像这样：
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 Dateobjects or just raw strings.
我试过打电话.toString('yyyy-MM-dd')给他们，但没有任何改变。我不知道它们是Date对象还是只是原始字符串。
I've tried checking the Mongoose manual and googling a bunch, but not found anything yet.
我试过检查猫鼬手册并谷歌搜索一堆，但还没有找到任何东西。
Any ideas?
有任何想法吗？
回答by eloone
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 :
一种现代方法是使用momentjs，既可在节点中使用，也可在浏览器中使用，超级有用且易于使用。对于当前的问题，我在遵循所有文档要求后在节点中解决了这个问题：
var moment = require('moment');
var fomatted_date = moment(photo.date_published).format('YYYY-MM-DD');
with photo.date_publisheddirectly coming from mongoose.
与photo.date_published从猫鼬直接来了。
回答by pkyeck
you have to create a Date object first:
你必须先创建一个 Date 对象：
var date = new Date(dateStr); // dateStr you get from mongodb
var d = date.getDate();
var m = date.getMonth()+1;
// ...
回答by Juri
what about defining your schema like:
定义你的架构怎么样：
var someSchema = new Schema({
title: String,
created: Date
});
s.t. the date is stored as a Dateobject in your mongoDB. As a result, when you read it back you'll have a proper Dateobject on which you can work with the available methods.
st 日期作为Date对象存储在 mongoDB 中。因此，当您回读它时，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。
