using && and || problem 1

[craigey]

Hi guys,

I'm not too good when it comes to javascript & have run into a problem with a line of code.

The original line is:

if(f.value=='' && f.id!='email'){cf_adderr(f)}

which I thought would be relatively straightforward to add some additional validation too, such as:

if(f.value=='' && f.id!='email' ) || (f.value='Write Your Message Here...' && f.id!='email'){cf_adderr(f)}

For some reason this doesn't work & produces the word false into my e-mail form field!! I thought that the "||" was an or operater not an "&&".

Can anyone pleaase shed some light.

Thanks

 

[BillyRayPreachersSon]

You're close. You need to have brackets around the whole lot, and use double-equals (==) rather than single equals (=) when testing for equality:

if ((f.value=='' && f.id!='email' ) || (f.value == 'Write Your Message Here...' && f.id!='email')) {
   cf_adderr(f);
}

Hope this helps,
Dan

[tt]Dan's Page [blue]@[/blue] Code Couch

http://www.codecouch.com/dan/

[/tt]

 

[craigey]

Darn. I knew about the "==" as well, don't know why I couldn't see it! I'm sure I also tried with the brackets. Oh well.

I tested your line & still didn't get the results I was expecting. But then I checked the rest of the code properly, I realised the "write Your Message Here..." was actually in a textarea & not a text box, so I was checking the wrong field!!

Never Mind sorted it out now.

Thanks for your Help.