async-wait.02.js

// ES6
function* foo(){
  yield bar();
}

// ES5 Compiled
"use strict";

var _marked = /*#__PURE__*/ regeneratorRuntime.mark(foo);

function foo() {
  return regeneratorRuntime.wrap(
    function foo$(_context) {
      while (1) {
        switch ((_context.prev = _context.next)) {
          case 0:
            _context.next = 2;
            return bar();

          case 2:
          case "end":
            return _context.stop();
        }
      }
    },
    _marked,
    this
  );
}