How to determine one year from now in Javascript Ask Question

How to determine one year from now in Javascript Ask Question

I'm trying to get one year from now's date, and it's not working.

JS:

var now = new Date();

var oneYr = new Date();
oneYr.setYear(now.getYear() + 1);
$("#yearFromNow").append(oneYr.toString());

var oneMonth = new Date();
oneMonth.setMonth(now.getMonth() + 1);
$("#monthFromNow").append(oneMonth.toString());

Output:

one mo. = Thu Dec 22 112 15:16:01 GMT-0500 (Eastern Standard Time)

one yr. = Sun Jan 22 2012 15:16:01 GMT-0500 (Eastern Standard Time)

The year has Dec 22 112 - ?? The month is correctly displaying Jan 22 2012.

If you want to tinker with it, http://jsbin.com/alezaj/edit#javascript,html,live. This is in Chrome and Firefox.

Thanks!

ベストアンサー1

This will create a Date exactly one year in the future with just one line. First we get the fullYear from a new Date, increment it, set that as the year of a new Date. You might think we'd be done there, but if we stopped it would return a timestamp, not a Date object so we wrap the whole thing in a Date constructor.

new Date(new Date().setFullYear(new Date().getFullYear() + 1))

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