Why can't I change a date object?

[boylesg]

var dateEOW = new Date();dateEOW.setFullYear(2014);dateEOW.setMonth(3);dateEOW.setDate(1);alert(dateEOW);

I give up!

 

Why can't I change the value of a date object with the setDate(...) etc.

 

These functions seem to have no effect and alert(...) simply outputs the current date.

[boylesg]

Actually if I do alert(dateEOF.getDay()) then I get the value I expect, however toDateString() still returns the current system date.

 

Further getDay() function returns the day of the week for the current system date rather than the date that I have set using setDate(...) etc

 

What the ###### is going on with this date object???

 

Is there some other function you have to call after using setDate(...) etc to make the internals of the object consistent??????

[boylesg]

Either that or getDay() is simply calculating the wrong value for what ever reason.

 

I am entering 1/3/2014 and according to getDay(), after setDate(1) setMonth(3) setYear(2014), the day of the week is 2 which is simply not correct.

[boylesg]

Bloody ###### it would seem to be a whole lot easier to do away with the php date object and simply calculate the day of week myself manually with function.

[Ingolme]

You can set the date with the constructor. I don't see where you're having a problem, though.

var d = new Date(2014, 3, 1);

Be aware that months are numbered from 0 to 11, so 3 would be April.

[justsomeguy]

This is Javascript, not PHP. I'll move the thread.

[davej]

Either that or getDay() is simply calculating the wrong value for what ever reason.

 

I am entering 1/3/2014 and according to getDay(), after setDate(1) setMonth(3) setYear(2014), the day of the week is 2 which is simply not correct.

 

The day of the week for April 1 is indeed 2. The method getDay returns 0-6. Similarly getMonth returns 0-11.

 

http://www.w3schools.com/jsref/jsref_getday.asp