getDay question

[GSN]

I am trying to get something to happen if the day is either Friday,
Saturday or Sunday. So after creating a variable from getDay...

var this_weekday = this_date_times tamp.getDay();

I do the following:


if (this_weekday > 4 || this_weekday = 0)
{
//do something
}
else

{
//do something else
};

It isn't working. It works fine if I just write "if (this_weekday = 4
)" or "if (this_weekday > 4 )" but when trying to get use OR (||) I am
having no luck. Can someone help me with the proper syntax?

[Erwin Moller]

Re: getDay question

GSN wrote:

Hi GSN,
[color=blue]
> I am trying to get something to happen if the day is either Friday,
> Saturday or Sunday. So after creating a variable from getDay...
>
> var this_weekday = this_date_times tamp.getDay();
>
> I do the following:
>
>
> if (this_weekday > 4 || this_weekday = 0)[/color]

if ( (this_weekday > 4) || (this_weekday == 0))

might do the trick.
mind the == instead of =

== for comparison
= for assignment

Good luck,

Regards,
Erwin Moller

[RobB]

Re: getDay question

GSN wrote:[color=blue]
> I am trying to get something to happen if the day is either Friday,
> Saturday or Sunday. So after creating a variable from getDay...
>
> var this_weekday = this_date_times tamp.getDay();
>
> I do the following:
>
>
> if (this_weekday > 4 || this_weekday = 0)
> {
> //do something
> }
> else
>
> {
> //do something else
> };
>
> It isn't working. It works fine if I just write "if (this_weekday = 4
> )" or "if (this_weekday > 4 )" but when trying to get use OR (||) I[/color]
am[color=blue]
> having no luck. Can someone help me with the proper syntax?[/color]

http://d0om.fnal.gov/d0admin/doctaur/dtdocs/p-langs/web_prog_bookshelf/jscript/ch05_04.htm

[Mick White]

Re: getDay question

GSN wrote:
[color=blue]
> I am trying to get something to happen if the day is either Friday,
> Saturday or Sunday. So after creating a variable from getDay...
>
> var this_weekday = this_date_times tamp.getDay();
>
> I do the following:
>
>
> if (this_weekday > 4 || this_weekday = 0)
> {
> //do something
> }
> else
>
> {
> //do something else
> };[/color]


if (this_weekday > 4 || this_weekday == 0)
{
//do something
}
else
{
//do something else
};

Mick

[Fred Oz]

Re: getDay question

Mick White wrote:[color=blue]
> GSN wrote:
>[color=green]
>> I am trying to get something to happen if the day is either Friday,
>> Saturday or Sunday. So after creating a variable from getDay...
>>
>> var this_weekday = this_date_times tamp.getDay();
>>
>> I do the following:
>>
>>
>> if (this_weekday > 4 || this_weekday = 0)
>> {
>> //do something
>> }
>> else
>>
>> {
>> //do something else
>> };[/color]
>
>
>
> if (this_weekday > 4 || this_weekday == 0)
> {
> //do something
> }
> else
> {
> //do something else
> };
>
> Mick
>[/color]

Hence why it is suggested that such tests be written the other way
around:


if ( this_weekday = 0 )

will always return true and not throw an error, making it hard to
find. Alternatively:


if ( 0 = this_weekday )

will always throw an error and force you to fix it with:


if ( 0 == this_weekday )



--
Fred