Custom URL in facebook and twitter share button

Question

I want to share a particular link when clicked on a share button in my app. Facebook share button snipet

<a href="#" 
  onclick="
    window.open(
      'https://www.facebook.com/sharer/sharer.php?u='+encodeURIComponent(location.href), 
      'facebook-share-dialog', 
      'width=626,height=436'); 
    return false;">
  Share on Facebook
</a>

How do i input my custom url?

Answer 1

Change location.href to whatever URL you want to share.

For example:

<a href="#" 
  onclick="
    window.open(
      'https://www.facebook.com/sharer/sharer.php?u='+encodeURIComponent('http://google.com'), 
      'facebook-share-dialog', 
      'width=626,height=436'); 
    return false;">
  Share on Facebook
</a>