tiny-jquery.js

(function (exports) {
  "use strict";

  function tQuery(selector, context) {
    var isNew = !(this == window || typeof this === "undefined");

    if(!isNew) return new tQuery(selector, context);

    var target = context || document;
    var elementsList = target.querySelectorAll(selector);

    Array.prototype.forEach.call(elementsList, function(element, idx) {
      this[idx] = element
    }.bind(this));
    
    this.length = elementsList.length;
  }

  tQuery.prototype.forEach = function(callback) {
    for (var i = 0; i < this.length; i++) {
      callback.call(this[i], this[i], i);
    };
  };

  exports.$$ = exports.tQuery = tQuery;

})(window);