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crystal-lang
crystal
Crystal2013–2026
crystal-lang / crystal

crystal

The Crystal Programming Language

Languages & Compilers
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97Distinct people
138Mentions
0Explicit recommenders
20.5KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

The Crystal Programming Language

GitHub

Where it is used

No documented product use was verified in the last source check.

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

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

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

HN mentions by year138 dated mentions

Observed mentions: 2013-03-13 08:16:16 UTC to 2026-04-16 20:50:06 UTC.

05101520252013-01-01 00:00:00 UTC to 2014-01-01 00:00:00 UTC (exclusive): 10 mentions; 1 submissions, 9 comments20132014-01-01 00:00:00 UTC to 2015-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2015-01-01 00:00:00 UTC to 2016-01-01 00:00:00 UTC (exclusive): 5 mentions; 2 submissions, 3 comments2016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 16 mentions; 3 submissions, 13 comments2017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 23 mentions; 5 submissions, 18 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 21 mentions; 0 submissions, 21 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 17 mentions; 3 submissions, 14 comments20192020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 6 mentions; 0 submissions, 6 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 9 mentions; 2 submissions, 7 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 14 mentions; 2 submissions, 12 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 7 mentions; 1 submissions, 6 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20132013-01-01 00:00:00 UTC2014-01-01 00:00:00 UTC1019
20142014-01-01 00:00:00 UTC2015-01-01 00:00:00 UTC202
20152015-01-01 00:00:00 UTC2016-01-01 00:00:00 UTC523
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC16313
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC23518
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC21021
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC17314
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC606
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC927
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC14212
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC716
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC505
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC202
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC101

What Hacker News says

138 sources
bhaney·Sep 29, 2024
I don't think that complaint is even true. A quick glance at the Crystal stdlib source[1] shows that the mktmp implementation uses the O_EXCL mode, which will cause the open call to error out if the file already exists, and the implementation here will handle that and try again with a different filename. I think the worst thing an attacker could do here if they could somehow predict the generated names before the file is created is DoS the mktmp call by racing ahead of it 100 times until it gives up. [1] https://github.com/crystal-lang/crystal/blob/release/1.13/sr...
In Notes on the Crystal Language
psychoslave·Jan 23, 2024
>In order for the interpreter's behavior to be different when presented with exactly the same input, it's necessary that the state of the interpreter has changed. What's the alternative? I guess that scoped changes is an option, that is you ask to alter the interpreter behavior only in a lexical scoped. Ruby has refinement in this spirit, though it’s not exactly operating at the same level as a require. Here is a related discussion that arised in Crystal community a few years ago: https://github.com/crystal-lang/crystal/issues/4439
In The end of "Useless Ruby sugar": On intuitions and evolutions
diggan·Jan 14, 2024
> What's the state of Windows support. https://github.com/crystal-lang/crystal/issues/5430 > UPDATE 2023-04-24: > All the main platform features for Windows are finished! > There are still some smaller stories pending. Project board: https://github.com/orgs/crystal-lang/projects/11/views/5 > You can support the ongoing development financially: Windows suppport (https://opencollective.com/crystal-lang/projects/windows-sup...) project on Open Collective.
In Crystal 1.11.0 Is Released
sspiff·Jan 12, 2024
Looking at the activity on the Free Pascal compiler[0] compared to some other, non-dead languages like Crystal[1], I would say Pascal isn't dead. They had a major release to their most popular IDE just a few weeks ago[2]. A lot of these projects built with FP aren't as visible in the HN community, because they related to different hobbyist fields, aren't keystone components in the startup ecosystem etc. But they for sure exist. [0] https://gitlab.com/freepascal.org/fpc/source/activity [1] https://github.com/crystal-lang/crystal/activity [2] https://forum.lazarus.freepascal.org/index.php/topic,65631.0...
In Is Fortran “A Dead Language”? (2022)
devmunchies·Aug 31, 2023
An often ignored part of the standards are how to represent durations (time spans). See http://xml.coverpages.org/ISO-FDIS-8601.pdf (section: 5.5.4.2 Representation of time-interval by duration only, pg. 21) Would like to see more json parsers in static languages allow me to define a field as a time span and can serialize into the valid format. For an example, see this proposal in Crystal: https://github.com/crystal-lang/crystal/issues/11942 Example: A duration of 15 days, 5 hours, and 20 seconds would be: P15DT5H0M20S A duration of 7 weeks would be: P7W
In RFC 3339 vs. ISO 8601

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