code: function pluralize(str) {
    var found;
    str = str.toLowerCase();
    if (!~uncountables.indexOf(str)) {
      found = rules.filter(function(rule) {
        return str.match(rule[0]);
      });
      if (found[0]) {
        return str.replace(found[0][0], found[0][1]);
      }
    }
    return str;
  }
docs: /*!
  Pluralize function.
  
  @author TJ Holowaychuk (extracted from _ext.js_)
  @param {String} string to pluralize
  @api private