Javascript 如何只比较moment.js中的日期
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How to compare only date in moment.js
提问by NoobGeek
I am new to moment.js. I have a date object and it has some time associated with it. I just want to check if that date is greater than or equal to today's date, excluding the time when comparing.
我是 moment.js 的新手。我有一个日期对象，它有一些与之相关的时间。我只想检查该日期是否大于或等于今天的日期，不包括比较时的时间。
var dateToCompare = 2015-04-06T18:30:00.000Z
I just want to check if dateToCompare is equal or greater than today's date. I have checked isSame of moment.js, but it seems to take string and only the date part. But I do not want to convert my date to string or manipulate it further. Because I am worried that javascript may do something unexpected when converting that date to string(like adding the offset or dst,etc), or may be I am wrong.
我只想检查 dateToCompare 是否等于或大于今天的日期。我已经检查过 moment.js 的 isSame，但它似乎只需要字符串和日期部分。但我不想将我的日期转换为字符串或进一步操作它。因为我担心 javascript 在将该日期转换为字符串时可能会做一些意想不到的事情（比如添加偏移量或 dst 等），或者可能是我错了。
Sample isSame() from docs
来自文档的示例 isSame()
moment('2010-10-20').isSame('2010-10-20');
Also I am looking for something like isSame() and isAfter() combined as one statement.
我也在寻找像 isSame() 和 isAfter() 这样的东西组合成一个语句。
I need to compare using moment.js only.Please do not suggest plain javascript date comparison.
我只需要使用 moment.js 进行比较。请不要建议使用纯 javascript 日期比较。
回答by zzzzBov
The docs are pretty clearthat you pass in a second parameter to specify granularity.
文档非常清楚，您传入第二个参数来指定粒度。
If you want to limit the granularity to a unit other than milliseconds, pass the units as the second parameter.
moment('2010-10-20').isAfter('2010-01-01', 'year'); // false moment('2010-10-20').isAfter('2009-12-31', 'year'); // trueAs the second parameter determines the precision, and not just a single value to check, using day will check for year, month and day.
如果要将粒度限制为毫秒以外的单位，请将单位作为第二个参数传递。
moment('2010-10-20').isAfter('2010-01-01', 'year'); // false moment('2010-10-20').isAfter('2009-12-31', 'year'); // true由于第二个参数决定了精度，而不仅仅是要检查的单个值，因此使用 day 将检查年、月和日。
For your case you would pass 'day'as the second parameter.
对于您的情况，您将'day'作为第二个参数传递。
回答by sandrooco
Meanwhile you can use the isSameOrAftermethod:
同时您可以使用以下isSameOrAfter方法：
moment('2010-10-20').isSameOrAfter('2010-10-20', 'day');
回答by Renish Gotecha
In my case i did following code for compare 2 dates may it will help you ...
在我的情况下，我做了以下代码来比较 2 个日期可能会帮助你......
var date1 = "2010-10-20";
var date2 = "2010-10-20";
var time1 = moment(date1).format('YYYY-MM-DD');
var time2 = moment(date2).format('YYYY-MM-DD');
if(time2 > time1){
console.log('date2 is Greter than date1');
}else if(time2 > time1){
console.log('date2 is Less than date1');
}else{
console.log('Both date are same');
}<script src="https://momentjs.com/downloads/moment.js"></script>回答by Anurag Aron Tigga
You could use startOf('day')method to compare just the date
您可以使用startOf('day')方法来比较日期
Example :
例子 ：
var dateToCompare = moment("06/04/2015 18:30:00");
var today = moment(new Date());
dateToCompare.startOf('day').isSame(today.startOf('day'));
