How to give callback on a Facebook share using Facebook javascript SDK

I shared to give callback with Tweet using Twitter intent API, but however Facebook hold more number of registered users so I'm going to share the same with Facebook. Facebook have a huge developers' tools which could be helpful to create uncountable tools for websites and apps.

So in one of them is Javascript SDK which uses client-side to do functions, so lets begin:
Make sure that this will not work in any online code editor because it needs a domain or sub-domain to work.

So to start you need a basic work-pattern, following code with load the Javascript SDK:

<script>
window.fbAsyncInit = function() {
       // All functions will go here
      };
      (function(d, s, id){
         var js, fjs = d.getElementsByTagName(s)[0];
         if (d.getElementById(id)) {return;}
         js = d.createElement(s); js.id = id;
         js.src = "//connect.facebook.net/en_US/sdk.js";
         fjs.parentNode.insertBefore(js, fjs);
       }(document, 'script', 'facebook-jssdk'));
</script>

Then, you need a share dialog with a specific URL on timeline so lets add FB.ui function which initiate a dialog box.

FB.ui({
  method: 'share',
  href: 'https://developers.facebook.com/docs/',  // URL to be shared}, function(response){
// Callback function after shared.});

Make sure that FB.ui function should be call inside fbAsyncInit function. Now you can use it in click function and the final code will be:

<span id='fb-share'>Share</span>
<script>
window.fbAsyncInit = function() {
      FB.ui({
  method: 'share',
  href: 'https://developers.facebook.com/docs/',  // URL to be shared  }, function(response){
// Callback function after shared.});
      };
      (function(d, s, id){
         var js, fjs = d.getElementsByTagName(s)[0];
         if (d.getElementById(id)) {return;}
         js = d.createElement(s); js.id = id;
         js.src = "//connect.facebook.net/en_US/sdk.js";
         fjs.parentNode.insertBefore(js, fjs);
       }(document, 'script', 'facebook-jssdk'));
</script>