Some month/year combinations do not show the correct number of days for the preceding month.

[MandarinConLaBarba]

createNewDayMonth is called with the current time when building the list of dates in the last days of last month, prior to the first day of this month.

This causes it to return a bad date and so when looking at Feb 2015 (for example) it will display 26, 27, 28, 1, 2, 3 as the last 6 days of Jan 2015.

First reported by @phullphill

Related to #6.

[mattdell]

I've noticed the same issue and had a look into it.

The problem lies in DateUtils.js under this function:

createNewDayMonth: function(date, month, time) {
    var newDate = new Date();
    newDate.setTime(time);
    newDate.setDate(date);
    newDate.setMonth(month);
    return newDate;
}

To fix this, the month must be set before the date. But if you look at the github source, this has already been done.

So the problem seems to be the version uploaded to the node package manager is not up to date with what is in github. Unfortunately it looks like this repository has been idle for the past 9 months so I'm not sure if the owner is going to update the package anytime soon.

-Matt

[MandarinConLaBarba]

Thanks for pointing that out, I will try to push a new version later today.

[MandarinConLaBarba]

Actually I'm looking at the NPM version and the Github source and these functions are identical. However, it appears there was an intentional change to this function to address a different issue. I will have to look at this later.

[mattdell]

Ahhhh, I see now. I've been looking at the source from here: https://github.com/misino/react-datepicker/blob/master/src/js/utils/DateUtils.js

I hadn't realized you forked from misino and then pushed the package.

I'm not sure what the overall fix is if there is another related bug, but boy am I having trouble finding a decent datepicker for React using NPM!

[MandarinConLaBarba]

@mattdell have you tried this one? I have not, but it looks decent at a glance.

[mattdell]

I have tried it and it does look very good, but it doesn't play nicely with npm/browserify: Hacker0x01/react-datepicker#47

Yours seems to be the only one that does. I've tried about 5 different ones today.

[MandarinConLaBarba]

OK, I will try to fix this date issue soon, also if you identify the issue please feel free to submit a PR.