promise-all-finally-not-working.js

let promises = []

let promise1 = new Promise((resolve, reject) => { resolve() })
let promise2 = new Promise((resolve, reject) => { resolve() })

promises.push(promise1, promise2)

Promise.all(promises)
  .then(() => {
    console.log('in then')
  })
  .finally(() => {
    console.log('in finally')
  })

// With Node 9.11.1
// outputs:
//
//   .finally(() => {
//           ^

// TypeError: Promise.all(...).then(...).finally is not a function
//     at Object.<anonymous> (/Users/tomcaflisch/promise-all-finally-not-working.js:12:11)
//     at Module._compile (internal/modules/cjs/loader.js:654:30)
//     at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
//     at Module.load (internal/modules/cjs/loader.js:566:32)
//     at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
//     at Function.Module._load (internal/modules/cjs/loader.js:498:3)
//     at Function.Module.runMain (internal/modules/cjs/loader.js:695:10)
//     at startup (internal/bootstrap/node.js:201:19)
//     at bootstrapNodeJSCore (internal/bootstrap/node.js:516:3)