javascript - simple but viral logical issue

Question

I have a url:

domain.com/?page=2&show=10&sortterm=km

If I sort for the second time, url is becoming

domain.com/?page=2&show=10&sortterm=km&sortterm=km

What i want to do is:

1. see if url has "?" in it
2. if yes, 
  2.1. see if "sortterm" exists in url
  2.2. if yes, replace that "&sortterm=x" with new "&sortterm=y"
  2.3. if not, add "&sortterm=y"
3. if not
  3.1 add "?sortterm=y"

this is my code:

var url = String(window.location);
if(url.indexOf("?") !== -1){
  if(url.indexOf('sortterm') !== -1){
    var newurl = url +'&sortterm='+sortterm; 
   //^ but i need to replace here, and the value of sortterm can be different. 
  }
...
...

I am a bit stuck, pleas help!

You could do `url.replace(/&sortterm=.*/,'&sortterm=' + sortterm)` or something like that — putvande, Nov 27 '13 at 13:58
@putvande, wooo, is it working code what you wrote here? i didnot know about this, this is cool.. can i take it? — doniyor, Nov 27 '13 at 13:59
You have to check that sortterm is not the first parameter after the query though — vogomatix, Nov 27 '13 at 14:00
http://stackoverflow.com/questions/5073859/jquery-how-to-get-parameters-of-a-url may help you to a more complex answer — vogomatix, Nov 27 '13 at 14:01
@vogomatix, If ``?``-test not true, then sortterm will be the first parameter, right? — doniyor, Nov 27 '13 at 14:01
Maybe this than: `url.replace(/&sortterm=[a-z0-9]+/i,'&sortterm=' + sortterm)`? — putvande, Nov 27 '13 at 14:03
url.replace(/([&?])sortterm=(\w+)/,'\1sortterm='+sorterm) maybe — vogomatix, Nov 27 '13 at 14:03

score 2 · Accepted Answer · answered Nov 27 '13 at 14:06

2

This

url = url.replace(/([&?]sortterm=)[^&]*/, "$1" + sortterm)

answered Nov 27 '13 at 14:06

georg

211,518
52
313
390

javascript - simple but viral logical issue

1 Answers1