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Check to see if function triggered by an event

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Rather that using $(element).trigger('click'), check to see if execute has come from an element rather than directly.

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Copy this code and paste it in your HTML 
  1. var foo = function(e) {
  2.     if (e) {
  3.         console.log(e);
  4.     } else {
  5.         console.log('this didn\'t come from an event!');
  6.     }
  7. };
  8.  
  9.  
  10. $('p').click(foo);
  11.  
  12. foo(); // instead of $('p').trigger('click')

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