inconsistent code style

G.js

/**
 * @param {*} input to create the G with.
 * @param {string|Element|Node=} opt_mod elemnt to look under.
 * @constructor
 * @return {G} the G object.
 */
G = function(input, opt_mod) {
  if (input.constructor == G)               // if with one statement and no {}
    return /** @type {G} */(input); 
  if (goog.isString(opt_mod)) {             // if with one statement but {}
    opt_mod = G.elsBySelector(/** @type {string} */(opt_mod))[0];
  }
  if (input.nodeType)                       // if without {}
    input = [input];
  else if (goog.isString(input)) {          // but else if with {}
    if (input.charAt(0) == '<') {
      input = [goog.dom.htmlToDocumentFragment(input)];
    } else {                                // else and } on the same line
      input = G.elsBySelector(input, opt_mod);
    }
    if (!input) {
      input = [];
    }
  }                                         // but } and else not on the same line
  else if (!input) {
    input = [];
  }
  if (!goog.isArrayLike(input)) {
    input = [input];
  }
  return /** @type {G} */(new G.init(/** @type {{length: number}} */(input)));
};

gistfile1.js

  if (!goog.isDef(opt_selector))
    return true;
  if (goog.isFunction(opt_selector)) {
    return opt_selector(element);
  }