Jquery DateJs, is there validation for full date?

问题:

I just find out about the power of date js, And its great!!! As I am a newbie I was wondering if there is any kind of general validitation for different types of full dates. eg.

var d1 = Date.parse('2000-10-18, 10:06 AM');
alert(d1.toString('HH:mm'));

If date is ('200-10-18, 10:06 AM'), of course it doesn't like it.

So my question is if there is any quick way to validate the full date, rather than having to validate one by one.

Thanks.

回答1:

Here I am answering your question again.

To validate a date, you can simply call:

var d1 = "200-10-18, 10:06 AM";
Date.validateDay(d1); 

And it will tell you if the date is valid.

EDIT

Or, you can simply do this:

var d = Date.parseExact("2008-03-08", "yyyy-MM-dd"); 
if (d !== null) { 
     alert('Date = ' + d.toString('MMMM dd, yyyy')); 
} 

Using parseExact will return null in case the date is not valid.

回答2:

Date.parse will parse date and time together if that's what you mean. But it doesn't like AM/PM, so you would need to convert your hour to 24 hour time.

I suggest, if you know it ends in AM or PM, just stripping that off, and if it's AM, you're fine. If it's PM, add 60 * 60 * 12 * 1000 back to the result to get your 12 hours back. (seconds * minutes * hours * milliseconds).

Try again with: var d1 = Date.parse('2000-10-18, 10:06');

Also, if you want to be sure the date is valid, parse will return NaN (not a number) if the input is invalid. But you can pretty much enter any date/time within a few thousand years, I believe. It will only start throwing NaN when you try to either parse a date with some screwed up syntax (like using a dash for one part and a slash for another) or if you try Date.parse("bananasandwitch").