gistfile1.js

;(function(){

  var anchor = document.querySelectorAll( 'a' )[0],
      span   = document.querySelectorAll( 'span' )[0],
      div    = document.querySelectorAll( 'div' )[0];
  
  div.addEventListener( 'click', function( e ){
    
      console.log( e.target, e.currentTarget ); //anchor, div 
      e.preventDefault();
    
  });
  
  span.addEventListener( 'click', function( e ){
       
      console.log( e.target, e.currentTarget ); //anchor, span
      e.preventDefault();
     
  });
  
  anchor.addEventListener( 'click', function( e ){
     
      console.log( e.target, e.currentTarget ); //anchor, anchor
      e.preventDefault();
     
  });
  
  document.addEventListener( 'click', function( e ){
      
      console.log( e.target, e.currentTarget ); //anchor, document
      e.preventDefault();
  });

}());