JavaScript optional chaining

Optional chaining is a new feature in JavaScript which allows safe access of properties from possibly-nullish objects, and safe calls to possibly-nullish functions.

Optional Chaining reached Stage 3 at the July 2019 TC39 meeting.



Working draft or equivalent

Status in Chromium


Behind a flag (tracking bug) in:

  • Chrome for desktop release 78
  • Chrome for Android release 78

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Intent to Implement url

Intent to Implement thread

Last updated on 2019-09-10