MapAndAll_vs_ForEachResolve.js

var packages = [
  'dbcli',
  'meow',
  'ruff',
]

function getInfo(name, cb) {
  if (name === 'dbcli') {
    setTimeout(() => {
      cb({
        description: 'this is a dbcli bro!',
      })
    }, 5000)
  } else {
    setTimeout(() => {
      cb({
        description: `this is a ${name} man!`,
      })
    }, 5000)
  }
}

var promise = Promise.resolve()
packages.forEach((package) => {
  promise = promise.then(() => {
    return new Promise((resolve) => {
      getInfo(package, (info) => {
        console.log(package, info)
        resolve()
      })
    })
  })
})

/*
var promises = packages.map((package) => {
  return new Promise((resolve) => {
    getInfo(package, (info) => {
      resolve({
        name: package,
        description: info.description,
      })
    })
  })
})
Promise.all(promises).then((packages) => {
  console.log('wat', packages)
})
*/