How to use [removed].replace javascript?

Question

My URLs

http://www.mysite.com/folder1/page1.aspx
http://www.mysite.com/folder1/page1.aspx?id=1
http://www.mysite.com/folder1/page1.aspx?id=1&dt=20111128


        

Answer 1

Include no path information at all, just like in a link:

window.location.replace("page2.aspx");

Here's a live example The example switches between

http://jsbin.com/asupup/2   -- The "2" corresponds to your "page1.aspx"

...and

http://jsbin.com/asupup/3   -- The "3" corresponds to your "page2.aspx"

...and so the 2 page uses

window.location.replace("3");

...and the 3 page uses

window.location.replace("2");

For more about how URLs (and in particular relative URLs) work, see RFC3986. But basically:

• If a relative URL doesn't start with . or /, it replaces the last segment. So:

    http://foo.com/one/two/page.html
  + bar.html
  = http://foo.com/one/two/bar.html
  

• If a relative URL starts with ../, it replaces the last segment and the one above it:

    http://foo.com/one/two/page.html
  + ../bar.html
  = http://foo.com/one/bar.html
  

  Note that the two subfolder has been replaced. Multiple ../s can be used to move up multiple levels:

    http://foo.com/one/two/three/four/page.html
  + ../../bar.html
  = http://foo.com/one/two/bar.html
  

• If a relative URL starts with a single /, it replaces everything after the hostname (and port, if any). So:

    http://foo.com/one/two/page.html
  + /bar.html
  = http://foo.com/bar.html
  
    http://foo.com:8080/one/two/page.html
  + /bar.html
  = http://foo.com:8080/bar.html
  

• If a relative URL starts with //, it replaces everything following the protocol, so:

    http://ex.com/folder/page.html
  + //foo.com
  = http://foo.com
  

  (This is handy when loading resources and you want to avoid worrying about http vs. https and mixed-content warnings.)