Taking out white space in string

[Ashlie]

I am trying to develop a script that takes out the white space at the
FRONT and the BACK of a string but not the middle. I have a string
that looks like this:

XXXX XXXX XXXX XXXX

The groupings within the string can be any length...howeve r, in order
to dump this data into a SQL database, the potential added white space
at the front or the back of the string needs to be deleted as the user
moves from one text box in a form to the next.

Any ideas?

[Evertjan.]

Re: Taking out white space in string

Ashlie wrote on 08 jul 2003 in comp.lang.javas cript:[color=blue]
> I am trying to develop a script that takes out the white space at the
> FRONT and the BACK of a string but not the middle. I have a string
> that looks like this:
>
> XXXX XXXX XXXX XXXX
>
> The groupings within the string can be any length...howeve r, in order
> to dump this data into a SQL database, the potential added white space
> at the front or the back of the string needs to be deleted as the user
> moves from one text box in a form to the next.[/color]


<script>
function trim(s){
return s.replace(/^\s*(.*?)\s*$/,"$1")
}

alert(">"+trim( ' XXXX XXXX XXXX XXXX ')+"<")
</script>

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Douglas Crockford]

Re: Taking out white space in string

> I am trying to develop a script that takes out the white space at the[color=blue]
> FRONT and the BACK of a string but not the middle. I have a string
> that looks like this:
>
> XXXX XXXX XXXX XXXX
>
> The groupings within the string can be any length...howeve r, in order
> to dump this data into a SQL database, the potential added white space
> at the front or the back of the string needs to be deleted as the user
> moves from one text box in a form to the next.[/color]

Check out the trim method here:

http://www.crockford.com/javascript/remedial.html

[frogcoder]

Re: Taking out white space in string

This works fine for me,

trim(stringValu e)
{
return stringValue.rep lace(/(^\s*|\s*$)/, "");
}

Douglas Crockford wrote:[color=blue][color=green]
>>I am trying to develop a script that takes out the white space at the
>>FRONT and the BACK of a string but not the middle. I have a string
>>that looks like this:
>>
>>XXXX XXXX XXXX XXXX
>>
>>The groupings within the string can be any length...howeve r, in order
>>to dump this data into a SQL database, the potential added white space
>>at the front or the back of the string needs to be deleted as the user
>>moves from one text box in a form to the next.[/color]
>
>
> Check out the trim method here:
> http://www.crockford.com/javascript/remedial.html
>[/color]

[Lasse Reichstein Nielsen]

Re: Taking out white space in string

frogcoder <seanliu@ms77.u rl.com.tw> writes:

Please don't top post.
[color=blue]
> This works fine for me,
>
> trim(stringValu e)
> {
> return stringValue.rep lace(/(^\s*|\s*$)/, "");
> }[/color]

Does it now?
What is the result of
trim(" foo bar ")
?
It only removes whitespace before *or* after the string, not both.
It can be fixed simply by adding a "g" after the regexp:
/(^\s+|\s+$)/g
(uses + too, there is no reason to replace nothing)

/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit. html>
'Faith without judgement merely degrades the spirit divine.'

[Dr John Stockton]

Re: Taking out white space in string

JRS: In article <bhnhk9$90o@net news.hinet.net> , seen in
news:comp.lang. javascript, frogcoder <seanliu@ms77.u rl.com.tw> posted at
Sun, 17 Aug 2003 17:24:25 :-[color=blue]
>This works fine for me,
>
>trim(stringVal ue)
>{
> return stringValue.rep lace(/(^\s*|\s*$)/, "");
>}[/color]

See FAQ sec 4.16 for a correct way of removing both leading & trailing
white-space.

--
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