An AMD module that gives a semantic string for the element that can be used in event dispatchers and/or switch statements.

hash-el.amd.js

define(function(){
  return function(el){
    var id = el.getAttribute('id');
    if(id) {
      return '#' + id;
    }else if(typeof el.className === 'string' && el.className.length > 0){
      var classes = el.className.hasOwnProperty('baseVal') ? el.className.baseVal.split(/ +/) : el.className.split(/ +/);
      classes.unshift(el.tagName.toLowerCase());
      return classes.join('.');
    }else{
      return el.tagName.toLowerCase();
    }
  };
});