Need help with a simple problem

[SteveB]

However, despite being simple, I can't figure it out (maybe because I'm a
newbie).

I'm trying to replace a string with another string, but it simply is not
working (no error messages, just won't work).

Basically, I have a document and I'd like to every occurrence of '&&1&&'
with 'test'. Eventually the user will specify what '&&1&&' will be replaced
with, but for now I can't get this simple test to work. What am I doing
wrong?

Thanks!

<SCRIPT LANGUAGE="JavaS cript" type="text/javascript">
<!--
var sDocument = new String("This is a &&1&&.");

alert (sDocument);

sDocument.repla ce("&&1&&", "test");
// sDocument.repla ce("&&1&&", txtPrompt.value );

alert (sDocument);

//-->
</SCRIPT>

[Lee]

Re: Need help with a simple problem

SteveB said:[color=blue]
>
>However, despite being simple, I can't figure it out (maybe because I'm a
>newbie).
>
>I'm trying to replace a string with another string, but it simply is not
>working (no error messages, just won't work).[/color]

the String.replace( ) method doesn't change the value of the string.
It creates a new string, with the replacement made:

var string1="alpha" ;
var string2=string1 .replace("alph" ,"bet");

[SteveB]

Re: Need help with a simple problem

Thanks Lee, worked like a charm!

"Lee" <REM0VElbspamtr ap@cox.net> wrote in message
news:bnu79l01p8 j@drn.newsguy.c om...[color=blue]
> SteveB said:[color=green]
> >
> >However, despite being simple, I can't figure it out (maybe because I'm a
> >newbie).
> >
> >I'm trying to replace a string with another string, but it simply is not
> >working (no error messages, just won't work).[/color]
>
> the String.replace( ) method doesn't change the value of the string.
> It creates a new string, with the replacement made:
>
> var string1="alpha" ;
> var string2=string1 .replace("alph" ,"bet");
>[/color]

[SteveB]

Re: Need help with a simple problem

One more question if I may. The replace function only seems to replace the
first instance of the string it's looking for. What if there are multiple
instances (for example, more than one &&1&& in my example), how can I
replace them all (keep in mind that I don't know how many there might be)?

Thanks!

"Lee" <REM0VElbspamtr ap@cox.net> wrote in message
news:bnu79l01p8 j@drn.newsguy.c om...[color=blue]
> SteveB said:[color=green]
> >
> >However, despite being simple, I can't figure it out (maybe because I'm a
> >newbie).
> >
> >I'm trying to replace a string with another string, but it simply is not
> >working (no error messages, just won't work).[/color]
>
> the String.replace( ) method doesn't change the value of the string.
> It creates a new string, with the replacement made:
>
> var string1="alpha" ;
> var string2=string1 .replace("alph" ,"bet");
>[/color]

[Lee]

Re: Need help with a simple problem

SteveB said:[color=blue]
>
>One more question if I may. The replace function only seems to replace the
>first instance of the string it's looking for. What if there are multiple
>instances (for example, more than one &&1&& in my example), how can I
>replace them all (keep in mind that I don't know how many there might be)?[/color]

The first argument to replace is more correctly a "regular expression",
rather than a simple string. Regular expressions allow such things
as wildcards and specifying that the replacement should be done
"globally", throughout the string:

string2=string1 .replace(/alph/g,"bet");

The "g" indicates "global" replacement.

Beware that some characters ("^[/", and others) have special
meaning within regular expressions.

[SteveB]

Re: Need help with a simple problem

Once again... thank you Lee! That did the trick!

"Lee" <REM0VElbspamtr ap@cox.net> wrote in message
news:bnudhm02dp a@drn.newsguy.c om...[color=blue]
> SteveB said:[color=green]
> >
> >One more question if I may. The replace function only seems to replace[/color][/color]
the[color=blue][color=green]
> >first instance of the string it's looking for. What if there are multiple
> >instances (for example, more than one &&1&& in my example), how can I
> >replace them all (keep in mind that I don't know how many there might[/color][/color]
be)?[color=blue]
>
> The first argument to replace is more correctly a "regular expression",
> rather than a simple string. Regular expressions allow such things
> as wildcards and specifying that the replacement should be done
> "globally", throughout the string:
>
> string2=string1 .replace(/alph/g,"bet");
>
> The "g" indicates "global" replacement.
>
> Beware that some characters ("^[/", and others) have special
> meaning within regular expressions.
>[/color]