Trailing comma's, really?? Its is so fucking ugly and inconsistent. Either ALWAYS have traling commas, or never have it. And since the meaning of a comma is separate two items, a trailing comma makes no semantical sense, the only reason you want it because A) youre lazy B) you dont know howto properly serialize to json (youre doing string manipulation probably C) you never heard about the .join function D) you dont know how to read a diff E) you dont do syntax checks before you deploy your code