Each city shall have power, whether provided in its charter or not, to codify, recodify and continue in code its municipal ordinances, in whole or in part, without the necessity of publishing the entire code in full. The ordinance adopting the code, as well as subsequent ordinances repealing, amending, continuing or adding to the code, shall be published as required by law. The ordinance adopting the code may amend, repeal, revise or rearrange ordinances or parts of ordinances by reference by title only.