javascript - Append a param onto the current URL

Question

I'd like to have a little easter egg button in the corner of a project site. When clicked, it just drops a string onto the current url and reloads the page.

So if I'm on: http://test.com/projects/view/134

The button is clicked

Page reload on: http://test.com/projects/view/134?ts=true

Not really sure how I might go about doing so though.

Answer 1

try this code,

var separator = (window.location.href.indexOf("?")===-1)?"?":"&";
window.location.href = window.location.href + separator + "ts=true";

EDITS: to avoid duplicated parameter or very large string in your url, you need to replace the old param it already exists.

var url=window.location.href,
    separator = (url.indexOf("?")===-1)?"?":"&",
    newParam=separator + "ts=true";
    newUrl=url.replace(newParam,"");
    newUrl+=newParam;
    window.location.href =newUrl;