do...while stopping 2 months early?

var date = new Date(); 
do {
    var sel = date.toString();
    document.write(sel + "<br>");
    date.setDate(date.getDate()+1);
   } while(date.getDate()开发者_运维知识库 != 2 && date.getMonth() != 2)

Why does this stop on Jan 1..?

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Because at Jan 2, the first condition returns false and the execution stops. I assume you want the script to continue all the way to Feb 2, in which case your condition should look like this:

} while(date.getDate() != 2 || date.getMonth() != 1)
// Stops when day is 2 and month is 1 (February)

Or:

} while(!(date.getDate() == 2 && date.getMonth() != 1))

Both mean the same thing. Note that months are zero indexed so February is 1. This results in a output like this:

...
Fri Jan 28 2011 14:57:00 GMT+0200
Sat Jan 29 2011 14:57:00 GMT+0200
Sun Jan 30 2011 14:57:00 GMT+0200
Mon Jan 31 2011 14:57:00 GMT+0200
Tue Feb 01 2011 14:57:00 GMT+0200

http://jsfiddle.net/MF7bR/

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Check http://jsfiddle.net/PYXeu/.

Jan 1rst have getDate == 2.

Edit: If you want this go to 2.02 check the code in http://jsfiddle.net/PYXeu/1/

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Because in the second iteration .getDate is 2. The while can't execute. You need to increase it to 3 if you want it to stop once it has completed 2.

It also wouldn't hurt if you were more explicit in your code about what you're adding to the date.

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When you hit March or 2. day of month, your loop won't be executed anymore. This is because months start from 0, so January is 0 and December is 11.

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In javascript, the month starts at index 0 for January. You will need to adjust your loop accordingly for your needs.

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I believe months start at 0, so on the 1st of January date.getMonth() == 0, which != 2.