promises-deep-nesting-anti-pattern.js

// nesting promises is an anti-pattern
// as with callbacks, we end up with a
// "pyramid of doom"
function getThing(arg) {
  return new Promise(function (resolve, reject) {
    getStuff(arg)
      .then(function (stuff) {
        getMoreStuff(stuff)
          .then(function (moreStuff) {
            getThatFinalThing(moreStuff)
              .then(function (thing) {
                resolve(thing)
              }, reject)
          }, reject)
      }, reject)
  })
}