Don't do this

bad_idea.js

$('body').on(
  'click', 
  'a#my_element',
  function(e) {
    e.preventDefault();
    $('body').on(
      'click', 
      'a#my_element',
      function(e) {
        e.preventDefault();
        myActualFunction();
      }
  }
);

// Result: clcking the link once does nothing, clicking it a second time does the work.

// Conclusion: I've been developing for 7 years and I'm still an idiot.

// Conclusion: I've been developing for 7 years and I'm still an idiot.

Aren't we all?