string interpolation .... like perl

Re: string interpolation .... like perl

Hi,

w i l l wrote:[color=blue]
> I am beginning JavaScript, expect to see me in here a bit more over
> the next few months :) I am currently writing some HTML with
> JavaScript. As you know HTML has many double quotes ( " ) when
> declaring attibute values, I know in some cases quotes are optional,
> but I like them.
>
>
> Here is something I've been playing with , it works, but in my
> opinion, it's ulgy...
>
> <script>
> var myArray = new Array("blue","g reen","red");
> for(var i = 0; i < myArray.length; i++) {
> document.write( "<input type=\"submit\" value=\"" + myArray[i] +"\"
> onClick=\"docum ent.bgColor='" + myArray[i] +"'\">");
> }
> </script>
>
> Is there any way to mix javascript variables in with HTML without
> having to excape all of the qoutes?[/color]

JavaScript considers " (double-quotes) and ' (single-quotes) as
equivalent (unlike other languages!) and allows you this kind of
construction:

var myString = 'This string says "Hello world"...';

However, there are situations where escaping is not avoidable. You will,
in your programmer's life, have to escape other characters too, like \\,
\t, \n, \r etc... After a while, you will stop noticing it and be able
to read escaped code as easily as unescaped ones. It's just a matter of
experience. It's the same in most advances languages anyway.

HTH,

Laurent
[color=blue]
> a perlish solution would be the qq operatior. but I know of nothing in
> javascript. Is there anything?
>
> perlish example...
>
> document.write( qq` an example of " any text" ... `);
>
>
> TIA
>
> w i l l[/color]


--
Laurent Bugnion, GalaSoft
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Re: string interpolation .... like perl

Make that

document.write( '<input type="submit" value=' + myArray[i].quote() + '
onclick=' + ('document.bgCo lor=' + myArray[i].quote() + ';').quote() + '>');