Quick each (http://jsperf.com/jquery-each-vs-quickeach)

gistfile1.js

jQuery.fn.quickEach = (function() {
  var jq = jQuery([1]);
  return function(c) {
    var i = -1, el, len = this.length;
    try {
      while (++i < len && (el = jq[0] = this[i]) && c.call(jq, i, el) !== false);
    } catch (e) {
      delete jq[0];
      throw e;
    }
    delete jq[0];
    return this;
  };
}());