I'm not getting it. How is this?

  doSomething().then(function(result) {
    var results = [result];
    results.push(88);
    return results;
  }).then(function(results) {
    results.push(99);
    return results;
  }).then(function(results) {
    console.log(results.join(', ');
  });

More attractive/readable and superior to this?

  function doSomething(pushEight);

  function pushEight(res){
    res.push(88);
    pushNine(res);
  }

  function pushNine(res){
    res.push(99);
    showResults(res);  
  }

  function showResults(res){
    console.log(res.join(', '));
  }

In addition to the anonymous functions I can't reuse elsewhere? Serious question, just asking..