RGrgbrgb·Oct 3, 2011Submission
Simple set implementation is JavaScript
1 points · Open discussionPeterScott
simplesets-nodejs
JavaScript2010–2011
PeterScott / simplesets-nodejs
simplesets-nodejs
Set datatype for Node.js
2Distinct people
2Mentions
0Explicit recommenders
50GitHub stars
What to know before exploring
What it is
Set datatype for Node.js
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, 12:54:37 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
HN mentions by month2 dated mentions
Observed mentions: 2010-10-08 00:56:12 UTC to 2011-10-03 14:44:12 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 |
|---|---|---|---|---|---|
| Oct 2010 | 2010-10-01 00:00:00 UTC | 2010-11-01 00:00:00 UTC | 1 | 0 | 1 |
| Nov 2010 | 2010-11-01 00:00:00 UTC | 2010-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2010 | 2010-12-01 00:00:00 UTC | 2011-01-01 00:00:00 UTC | 0 | 0 | 0 |
| Jan 2011 | 2011-01-01 00:00:00 UTC | 2011-02-01 00:00:00 UTC | 0 | 0 | 0 |
| Feb 2011 | 2011-02-01 00:00:00 UTC | 2011-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2011 | 2011-03-01 00:00:00 UTC | 2011-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2011 | 2011-04-01 00:00:00 UTC | 2011-05-01 00:00:00 UTC | 0 | 0 | 0 |
| May 2011 | 2011-05-01 00:00:00 UTC | 2011-06-01 00:00:00 UTC | 0 | 0 | 0 |
| Jun 2011 | 2011-06-01 00:00:00 UTC | 2011-07-01 00:00:00 UTC | 0 | 0 | 0 |
| Jul 2011 | 2011-07-01 00:00:00 UTC | 2011-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2011 | 2011-08-01 00:00:00 UTC | 2011-09-01 00:00:00 UTC | 0 | 0 | 0 |
| Sep 2011 | 2011-09-01 00:00:00 UTC | 2011-10-01 00:00:00 UTC | 0 | 0 | 0 |
| Oct 2011 | 2011-10-01 00:00:00 UTC | 2011-11-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
2 sourcesThe lack of sets as a data type at the language level is a serious problem with JS. Most languages which implement sets as a library make some assumption about the elements: they're ordered, for example, or they all have a unique string serialization. If you want to make a set data type in JavaScript, the language doesn't give you any of those assumptions. You might end up just using linear search of unordered arrays. (This is actually very fast for small sets, but still.)
I wrote some more about this here:
http://finger-tree.blogspot.com/2010/09/sets-in-javascript.h...
And here is a library that offers sets in JS:
http://github.com/PeterScott/simplesets-nodejs
If you're using Node.js, you can get it with npm. It could be adapted to the browser pretty easily. This is what I use, and it makes my life so much easier.
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