Date object acceptable strings

I am trying to find a format for a string that could be used to instantiate a Date object which would include only a month and a year.

I can't find documentation on what formats of dates are accepted.

You can do this but it will assume current day. Not sure what you are expecting back. This code will produce:

Mon Dec 29 14:16:22 MST 1980

The month in the date object is always minus one.

<script>
var d = new Date();
d.setMonth("11");
d.setYear("1980");
alert(d);
</script>

Here is a link. Just google Javascript Date Object.

http://www.cev.washington.edu/lc/CLW..._datetime.html

Thanks for the example. It is very informative, but I don't quite understand from it how I can pass just a month and a year to a Date object... am I missing something?

check out:
DevGuru
http://www.devguru.com/technologies/...ript/10585.asp

Code:

---

var year=1981;
var month=4;

alert(new Date(year, month))//==Mon Jun 01 1981 00:00:00 GMT-0500 (Central Daylight Time)

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Quote:

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Originally Posted by harrierdh

You can do this but it will assume current day. Not sure what you are expecting back. This code will produce:

Mon Dec 29 14:16:22 MST 1980

The month in the date object is always minus one.

<script>
var d = new Date();
d.setMonth("11");
d.setYear("1980");
alert(d);
</script>

Here is a link. Just google Javascript Date Object.

http://www.cev.washington.edu/lc/CLW..._datetime.html

---

If you do that, it will fail when the current month has 31 days and the specified has less.

Eric

As rnd_me showed, giving the date constructor only a year and a month sets the date to the first instant of the first day of that month.

Code:

---

function datefrom_ym(y, m){
    return new Date(y, m-1);
}

---

alert(datefrom_ym(2010,4))// use strings or numbers