Iterative, but CPS

iterative_cps.js

var iterativeRunner = function (arr) {
  var funcs = arr.map(function (item, index) {
    return function () {
      item(function () {
        if (funcs[index + 1]) {
          funcs[index + 1]();
        }
      });
    };
  });
  funcs[0]();
};