Jquery / Javascript get params from window localtion

Question

My URL is:

http://localhost:3000/?sort=rating

The parameter sort is dynamic, and I would like to add it to another URL.

In my javascript I have:

window.location.pathname + '.js?page=' + currentPage

How do I add the sort parameter at the end?

Example:

window.location.pathname + '.js?page=' + currentPage + &sortparam

In this case it would be:

window.location.pathname + '.js?page=' + currentPage + '&sort=rating'

Do you want to just replace the `?` with a `&` or am I misunderstanding your question? — pimvdb, Mar 10 '12 at 21:32
I found at that I can use window.location.search but then I need to replace the ? with & — Rails beginner, Mar 10 '12 at 21:41

score 2 · Accepted Answer · edited May 23 '17 at 11:48

2

Here is what you're looking for:

How can I get query string values in JavaScript?

In your case:

function getParameterByName(name)
{
  name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
  var regexS = "[\\?&]" + name + "=([^&#]*)";
  var regex = new RegExp(regexS);
  var results = regex.exec(window.location.search);
  if(results == null)
    return "";
  else
    return decodeURIComponent(results[1].replace(/\+/g, " "));
}

var sortparam = getParameterByName("sort");
window.location.pathname + '.js?page=' + currentPage + '&sort='+sortparam

edited May 23 '17 at 11:48

Community

1
1

answered Mar 10 '12 at 21:40

Johannes Staehlin

3,680
7
36
50

is it safe, thinking of someone could escape javascript in the param? – Rails beginner Mar 10 '12 at 21:49
1

there is a little typo "'&sort='sortparam" it should be "'&sort=' + sortparam – Rails beginner Mar 10 '12 at 21:51
I don't know your sort algorithm and what exactly you're doing with the sortparam. But value's in the javascript-code can EVER be changed by the user. (Chrome extension, firebug,...) – Johannes Staehlin Mar 10 '12 at 21:53

score 1 · Answer 2 · answered Mar 10 '12 at 21:46

Here's one more, with a slightly more general wrapper:

function getParams() {

  var params = window.location.search.substring(1).split('& '),
    i = 0,
    pair = null,
    result = {};

  while (pair = params[i++]) {
    pair = pair.split('=');
    result[pair[0]] = decodeURIComponent(pair[1]);
  }

  return result;
}

alert(getParams().page);

score 0 · Answer 3 · answered Mar 10 '12 at 21:42

0

window.location.pathname + '.js?page=' + currentPage +
    "&" + location.search.match(/(sort=.*?)&|$/)[1]

answered Mar 10 '12 at 21:42

kirilloid

14,011
6
38
52

Jquery / Javascript get params from window localtion

3 Answers3