es-optional-chaining
ECMAScript proposal for Optional Chaining (aka Existential Operator, aka Null Propagation)
What to know before exploring
What it is
ECMAScript proposal for Optional Chaining (aka Existential Operator, aka Null Propagation)
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
Observed mentions: 2017-02-16 11:51:27 UTC to 2017-03-14 05:14:23 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Feb 16 | 2017-02-16 00:00:00 UTC | 2017-02-17 00:00:00 UTC | 1 | 1 | 0 |
| Feb 17 | 2017-02-17 00:00:00 UTC | 2017-02-18 00:00:00 UTC | 0 | 0 | 0 |
| Feb 18 | 2017-02-18 00:00:00 UTC | 2017-02-19 00:00:00 UTC | 0 | 0 | 0 |
| Feb 19 | 2017-02-19 00:00:00 UTC | 2017-02-20 00:00:00 UTC | 0 | 0 | 0 |
| Feb 20 | 2017-02-20 00:00:00 UTC | 2017-02-21 00:00:00 UTC | 0 | 0 | 0 |
| Feb 21 | 2017-02-21 00:00:00 UTC | 2017-02-22 00:00:00 UTC | 0 | 0 | 0 |
| Feb 22 | 2017-02-22 00:00:00 UTC | 2017-02-23 00:00:00 UTC | 0 | 0 | 0 |
| Feb 23 | 2017-02-23 00:00:00 UTC | 2017-02-24 00:00:00 UTC | 0 | 0 | 0 |
| Feb 24 | 2017-02-24 00:00:00 UTC | 2017-02-25 00:00:00 UTC | 0 | 0 | 0 |
| Feb 25 | 2017-02-25 00:00:00 UTC | 2017-02-26 00:00:00 UTC | 0 | 0 | 0 |
| Feb 26 | 2017-02-26 00:00:00 UTC | 2017-02-27 00:00:00 UTC | 0 | 0 | 0 |
| Feb 27 | 2017-02-27 00:00:00 UTC | 2017-02-28 00:00:00 UTC | 0 | 0 | 0 |
| Feb 28 | 2017-02-28 00:00:00 UTC | 2017-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 1 | 2017-03-01 00:00:00 UTC | 2017-03-02 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2 | 2017-03-02 00:00:00 UTC | 2017-03-03 00:00:00 UTC | 0 | 0 | 0 |
| Mar 3 | 2017-03-03 00:00:00 UTC | 2017-03-04 00:00:00 UTC | 0 | 0 | 0 |
| Mar 4 | 2017-03-04 00:00:00 UTC | 2017-03-05 00:00:00 UTC | 0 | 0 | 0 |
| Mar 5 | 2017-03-05 00:00:00 UTC | 2017-03-06 00:00:00 UTC | 0 | 0 | 0 |
| Mar 6 | 2017-03-06 00:00:00 UTC | 2017-03-07 00:00:00 UTC | 0 | 0 | 0 |
| Mar 7 | 2017-03-07 00:00:00 UTC | 2017-03-08 00:00:00 UTC | 0 | 0 | 0 |
| Mar 8 | 2017-03-08 00:00:00 UTC | 2017-03-09 00:00:00 UTC | 0 | 0 | 0 |
| Mar 9 | 2017-03-09 00:00:00 UTC | 2017-03-10 00:00:00 UTC | 0 | 0 | 0 |
| Mar 10 | 2017-03-10 00:00:00 UTC | 2017-03-11 00:00:00 UTC | 0 | 0 | 0 |
| Mar 11 | 2017-03-11 00:00:00 UTC | 2017-03-12 00:00:00 UTC | 0 | 0 | 0 |
| Mar 12 | 2017-03-12 00:00:00 UTC | 2017-03-13 00:00:00 UTC | 0 | 0 | 0 |
| Mar 13 | 2017-03-13 00:00:00 UTC | 2017-03-14 00:00:00 UTC | 0 | 0 | 0 |
| Mar 14 | 2017-03-14 00:00:00 UTC | 2017-03-15 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
2 sourcesJavaScript Optional Chaining: Another CoffeeScript-Inspired Proposal
1 points · Open discussion