00-if-the-user-presses-enter.js

(function( $ ) {
  'use strict';
  
  $( document ).on( 'keypress', function( evt ) {

    if ( 13 === evt.which ) {
      
		  /* Define your functionality here. Note that if you have
		   * code that's being duplicated for, say, a 'click' handler,
		   * then abstract the code into a function and just make a
		   * call to the function.
		   */
		   
    }

  });
  
})( jQuery );