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'

Answer 1

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