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yash

2008-Jan-03 13:27 UTC

How to assign a variable as value to a property

$(element).setStyle({
  background: ''url(/image.gif) no-repeat''       /* Myproblem:
background: ''someVariable'' */
});

The above code snippet assigns the value ''url(image.gif)
no-repeat'' to
the property ''background''. I have a situation where in i am
getting
the value i.e image URL from the back-end dynamically and i am able to
store it in a variable say ''someVariable''. Now what is the
syntax I
should follow to assign ''someVariable'' to background. Please
help.
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bram.vandersype-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-03 14:06 UTC

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Re: How to assign a variable as value to a property

var bg = ''background: url('' + someVariable + '')
no-repeat;'';
$(element).setStyle(bg);

that should do the trick.

On Jan 3, 2:27 pm, yash
<itsme.y...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> $(element).setStyle({
>   background: ''url(/image.gif) no-repeat''       /*
Myproblem:
> background: ''someVariable'' */
>
> });
>
> The above code snippet assigns the value ''url(image.gif)
no-repeat'' to
> the property ''background''. I have a situation where in i
am getting
> the value i.e image URL from the back-end dynamically and i am able to
> store it in a variable say ''someVariable''. Now what is
the syntax I
> should follow to assign ''someVariable'' to background.
Please help.--~--~---------~--~----~------------~-------~--~----~
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yash

2008-Jan-03 14:32 UTC

head link

Re: How to assign a variable as value to a property

Thanks for the reply.
The var bg is getting constructed correctly but $
(element).setStyle(bg); does not work.
Is there any particular way of accessing variables??


On Jan 3, 7:06 pm,
"bram.vanders...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<bram.vanders...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> var bg = ''background: url('' + someVariable + '')
no-repeat;'';
> $(element).setStyle(bg);
>
> that should do the trick.
>
> On Jan 3, 2:27 pm, yash
<itsme.y...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > $(element).setStyle({
> >   background: ''url(/image.gif) no-repeat''       /*
Myproblem:
> > background: ''someVariable'' */
>
> > });
>
> > The above code snippet assigns the value ''url(image.gif)
no-repeat'' to
> > the property ''background''. I have a situation where
in i am getting
> > the value i.e image URL from the back-end dynamically and i am able to
> > store it in a variable say ''someVariable''. Now what
is the syntax I
> > should follow to assign ''someVariable'' to
background. Please help.--~--~---------~--~----~------------~-------~--~----~
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zuzmic-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-04 08:36 UTC

head link

Re: How to assign a variable as value to a property

Im not sure, but better use ''background-repeat'' and
''background-
color''

yash wrote:> $(element).setStyle({
>   background: ''url(/image.gif) no-repeat''       /*
Myproblem:
> background: ''someVariable'' */
> });
>
> The above code snippet assigns the value ''url(image.gif)
no-repeat'' to
> the property ''background''. I have a situation where in i
am getting
> the value i.e image URL from the back-end dynamically and i am able to
> store it in a variable say ''someVariable''. Now what is
the syntax I
> should follow to assign ''someVariable'' to background.
Please help.--~--~---------~--~----~------------~-------~--~----~
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"Ruby on Rails: Spinoffs" group.
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RobG

2008-Jan-04 09:31 UTC

head link

Re: How to assign a variable as value to a property

On Jan 3, 11:27 pm, yash
<itsme.y...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> $(element).setStyle({
>   background: ''url(/image.gif) no-repeat''       /*
Myproblem:
> background: ''someVariable'' */
>
> });
>
> The above code snippet assigns the value ''url(image.gif)
no-repeat'' to
> the property ''background''. I have a situation where in i
am getting
> the value i.e image URL from the back-end dynamically and i am able to
> store it in a variable say ''someVariable''. Now what is
the syntax I
> should follow to assign ''someVariable'' to background.
Please help.
Just assign it:

  element.style.background = ''url('' + imgSrc + '')
no-repeat'';

or if you really want to use setStyle:

  $(element).setStyle({
    ''background'': ''url('' + imgSrc +
'') no-repeat''
  });

<URL: http://www.prototypejs.org/api/element/setStyle >


--
Rob
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yash

2008-Jan-07 12:50 UTC

head link

Re: How to assign a variable as value to a property

The below code snippet works.Cheers...
$(element).setStyle({
    ''background: ''url('' + imgSrc + '')
no-repeat''
  });

The one thing I learnt from this is to treat javascript more as a
scripting language and less as a programing language.

On Jan 4, 2:31 pm, RobG <rg...-AFFH1GffN5hPR4JQBCEnsQ@public.gmane.org>
wrote:> On Jan 3, 11:27 pm, yash
<itsme.y...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > $(element).setStyle({
> >   background: ''url(/image.gif) no-repeat''       /*
Myproblem:
> > background: ''someVariable'' */
>
> > });
>
> > The above code snippet assigns the value ''url(image.gif)
no-repeat'' to
> > the property ''background''. I have a situation where
in i am getting
> > the value i.e image URL from the back-end dynamically and i am able to
> > store it in a variable say ''someVariable''. Now what
is the syntax I
> > should follow to assign ''someVariable'' to
background. Please help.
>
> Just assign it:
>
>   element.style.background = ''url('' + imgSrc +
'') no-repeat'';
>
> or if you really want to use setStyle:
>
>   $(element).setStyle({
>     ''background'': ''url('' + imgSrc +
'') no-repeat''
>   });
>
> <URL:http://www.prototypejs.org/api/element/setStyle>
>
> --
> Rob--~--~---------~--~----~------------~-------~--~----~
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Nicolás Sanguinetti

2008-Jan-07 14:02 UTC

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Re: How to assign a variable as value to a property

On Jan 7, 2008 10:50 AM, yash
<itsme.yash-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> The one thing I learnt from this is to treat javascript more as a
> scripting language and less as a programing language.
The difference being?

-Nicolas

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RobG

2008-Jan-08 03:14 UTC

head link

Re: How to assign a variable as value to a property

On Jan 7, 10:50 pm, yash
<itsme.y...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> The below code snippet works.Cheers...
> $(element).setStyle({
>     ''background: ''url('' + imgSrc + '')
no-repeat''
>   });
No it doesn''t, it has a syntax error.  I would expect setStyle to be
used only where you don''t know what style property is to be set, and
even then only if you expect to have to deal with opacity or float
properties.

If you know the property you want to set, I can''t see the point in
using setStyle over just setting the attribute value (which is more
efficient and slightly less code to write).

The first time you have to sift through the code to modify styles you
may come to the conclusion that you should give the element a class
and let a CSS guru do the work.

> The one thing I learnt from this is to treat javascript more as a
> scripting language and less as a programing language.
From the perspective of the author, there is no difference.


--
Rob
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Rails spinoffs - Jan 2008 - How to assign a variable as value to a property

How to assign a variable as value to a property

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