Micro version of famous library

jquery.micro.js

var $ = function (d) {
  var $ = document.querySelectorAll.bind(document);

  Element.prototype.on = Element.prototype.addEventListener;
  NodeList.prototype.on = function (event, fn) {
    [].forEach.call(this, function (el) {
      el.on(event, fn, false);
    });
  };
  
  Element.prototype.trigger = function (type, data) {
    var event = document.createEvent('HTMLEvents');
    event.initEvent(type, true, true);
    event.data = data || {};
    event.eventName = type;
    this.dispatchEvent(event);
  };
  NodeList.prototype.trigger = function (event) {
    [].forEach.call(this, function (el) {
      el.trigger(event);
    });
  };
    
  return function (s) {
    return $(s);
  };
}(document);

jquery.micro.min.js

var $=function(e){var t=document.querySelectorAll.bind(document);Element.prototype.on=Element.prototype.addEventListener;NodeList.prototype.on=function(e,t){[].forEach.call(this,function(n){n.on(e,t,false)})};Element.prototype.trigger=function(e,t){var n=document.createEvent("HTMLEvents");n.initEvent(e,true,true);n.data=t||{};n.eventName=e;this.dispatchEvent(n)};NodeList.prototype.trigger=function(e){[].forEach.call(this,function(t){t.trigger(e)})};return function(e){return t(e)}}(document)