I'm trying to detect with Moment.js if a given date is between two dates. Since version 2.0.0, Tim added isBefore()
and isAfter()
for date comparison.
Since there's no isBetween()
method, I thought this would work:
var date = moment("15/02/2013", "DD/MM/YYYY");
var startDate = moment("12/01/2013", "DD/MM/YYYY");
var endDate = moment("15/01/2013", "DD/MM/YYYY");
if (date.isBefore(endDate)
&& date.isAfter(startDate)
|| (date.isSame(startDate) || date.isSame(endDate))
) {
alert("Yay!");
} else {
alert("Nay! :(");
}
I'm convinced there's got to be a better way to do this. Any ideas?
This question is related to
javascript
date
momentjs
Good news everyone, there's an isBetween
function!
Update your library ;)
In versions 2.9+ there is an isBetween
function, but it's exclusive:
var compareDate = moment("15/02/2013", "DD/MM/YYYY");
var startDate = moment("12/01/2013", "DD/MM/YYYY");
var endDate = moment("15/01/2013", "DD/MM/YYYY");
// omitting the optional third parameter, 'units'
compareDate.isBetween(startDate, endDate); //false in this case
There is an inclusive workaround ...
x.isBetween(a, b) || x.isSame(a) || x.isSame(b)
... which is logically equivalent to
!(x.isBefore(a) || x.isAfter(b))
In version 2.13 the isBetween
function has a fourth optional parameter, inclusivity
.
Use it like this:
target.isBetween(start, finish, 'days', '()') // default exclusive
target.isBetween(start, finish, 'days', '(]') // right inclusive
target.isBetween(start, finish, 'days', '[)') // left inclusive
target.isBetween(start, finish, 'days', '[]') // all inclusive
More units to consider: years, months, days, hours, minutes, seconds, milliseconds
Note: units are still optional. Use null
as the third argument to disregard units in which case milliseconds is the default granularity.
if (date.isBefore(endDate)
&& date.isAfter(startDate)
|| (date.isSame(startDate) || date.isSame(endDate))
is logically the same as
if (!(date.isBefore(startDate) || date.isAfter(endDate)))
which saves you a couple of lines of code and (in some cases) method calls.
Might be easier than pulling in a whole plugin if you only want to do this once or twice.
You can use
moment().isSameOrBefore(Moment|String|Number|Date|Array);
moment().isSameOrAfter(Moment|String|Number|Date|Array);
or
moment().isBetween(moment-like, moment-like);
See here : http://momentjs.com/docs/#/query/
I do believe that
if (startDate <= date && date <= endDate) {
alert("Yay");
} else {
alert("Nay! :(");
}
works too...
As Per documentation of moment js,
There is Precise Range plugin, written by Rob Dawson, can be used to display exact, human-readable representations of date/time ranges, url :http://codebox.org.uk/pages/moment-date-range-plugin
moment("2014-01-01 12:00:00").preciseDiff("2015-03-04 16:05:06");
// 1 year 2 months 3 days 4 hours 5 minutes 6 seconds
moment.preciseDiff("2014-01-01 12:00:00", "2014-04-20 12:00:00");
// 3 months 19 days
Please use the 4th parameter of moment.isBetween function (inclusivity). Example:
var startDate = moment("15/02/2013", "DD/MM/YYYY");
var endDate = moment("20/02/2013", "DD/MM/YYYY");
var testDate = moment("15/02/2013", "DD/MM/YYYY");
testDate.isBetween(startDate, endDate, 'days', true); // will return true
testDate.isBetween(startDate, endDate, 'days', false); // will return false
Source: Stackoverflow.com