string question

[Suppy]

How can i create a string function that will give me the string but with out the spaces from the front or the back of the string

 

[trollacious]

It sounds like you want a string trimming function. This is the kind of thing I use:

function trim(onestring)
{
var whitespace='\t\n\r ';
var newstring=onestring, oi=0;

var onechar=newstring.charAt(oi);
while (whitespace.indexOf(onechar) > -1)
{
oi++;
if (oi==newstring.length) return '';
onechar=onestring.char(oi);
}

newstring = newstring.substr(oi);

oi=newstring.length-1;
onechar=newstring.charAt(oi);
while (whitespace.indexOf(onechar) > -1)
{
oi--;
if (oi<0) return '';
onechar=newstring.charAt(oi);
}

newstring=newstring.substr(0, oi + 1);
return newstring;
}

 

[Suppy]

Thank you for sending me the script.I am a rookie in Javascript but i want to learn.
But a friend of mine told me somthing about regular expessions. Is it possible to write all the code that you gave me in one line with regular expressions?
Thanks
Suppy

 

[trollacious]

I'm not adept at regular expressions myself, but some of the techies here speak regular expressions like their mother tongue. #

 

[Suppy]

ok thanks anyway.
but i have one more question.
how do i use your function?
is it correct this way
var x=trim(&quot;some thing&quot
response.write(x)
on my screen will apear &quot;something&quot; in one word not in two

 

[trollacious]

The function I wrote will trim all leading and trailing white space from a string, but leave anything inside alone. Did you want ALL white space removed, sothewholestringisonebigword?

What I wrote will give you:

var oldstring=' some thing ';
var newstring=trim(oldstring);

which will result in 'some thing'