Quickest way to search and replace in a query string?

[laredotornado]

Hi,

Given the search or query string from a URL ...

var searchStr = location.search;

How would i write a function, replace(paramName, paramVal), to replace
the value in the query string belonging to the param name,
"paramName", or, if there is no "paramName" given in the query string,
add it to the existing query string?

Thanks for your help, - Dave

[Luuk]

laredotornado schreef:

http://lmgtfy.com/?q=how+to+replace+param+in+url

1st link looks good....
http://www.webmasterworld.com/javascript/3986111.htm

--
Luuk

[Thomas 'PointedEars' Lahn]

laredotornado wrote:

You could use a keyboard.

<http://www.catb.org/~esr/faqs/smart-questions.html>

PointedEars
--
Danny Goodman's books are out of date and teach practices that are
positively harmful for cross-browser scripting.
-- Richard Cornford, cljs, <cife6q$253$1$8300...@news.demon.co.uk> (2004)

[Csaba Gabor]

On Nov 11, 9:39 pm, laredotornado <laredotorn...@zipmail.com> wrote:
> var searchStr = location.search;
>
> How would i write a function, replace(paramName, paramVal), to replace
> the value in the query string belonging to the param name,
> "paramName", or, if there is no "paramName" given in the query string,
> add it to the existing query string?

Untested, but possibly something like:
first protect paramName and paramVal with one
of the encoding functions:
escape(), encodeURI(), or encodeURIComponent()
and then

var re = new RegExp('\\?' + paramName + '=[^?]*');
var newItem = '?' + paramName + '=' + paramVal;
var newSearchStr = (('?'+searchStr)
.replace(re, "") + newItem).substr(1)

Csaba Gabor from Vienna