流星-MongoDb-如何获取当前数据时间和未来日期时间之间的剩余秒数

Question

I want to get seconds remaining between a current dataTime and future dateTime.

I am using Meteor + MongoDb.

In Mongo DataTime is saved like this:

2015-12-11T06:14:39.671Z

I want seconds remaining between current datatime and future or expiry datetime.

Answer 1

keep your time data in epoch format which is basically storing data in milliseconds. then you'll be easy able to compare using momentJS or substracting. And in MongoDB , this data will be stored as Number type not Date

var time= (new Date).getTime();

this piece of code will return time in milliseconds.

Answer 2

The javascript Date can handle the sample input as listed in your question. If that format is consistant, the following should get you your answer:

var difference = (new Date(databaseDate).getTime()-Date.now())/1000;

Where Date.getTime() and Date.now() are in milliseconds (hence the 1000).