gistfile1.txt

YUI().use(
  "console",
  "file1",
  "file2",
  function (Y) {
    // I'm a callback that runs as soon as all dependencies are loaded
  }
);

YUI.add(
  "file1",
  function (Y) {
    // code goes here that runs when loader loads this module
  }
);

YUI.add(
  "file2",
  function (Y) {
    // code goes here that runs when loader loads this module
  }
);