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slevithan
regex
JavaScript2024–2025
slevithan / regex

regex

JS regexes ➕ future. A template tag for readable, high-performance, native JS regexes with extended syntax, context-aware interpolation, and always-on best practices.

Learning & Reference
Explore on GitHubRead Hacker News discussions
3Distinct people
3Mentions
0Explicit recommenders
635GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

JS regexes ➕ future. A template tag for readable, high-performance, native JS regexes with extended syntax, context-aware interpolation, and always-on best practices.

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, 3:03:16 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 month3 dated mentions

Observed mentions: 2024-06-20 12:26:38 UTC to 2025-08-27 06:29:49 UTC.

012024-06-01 00:00:00 UTC to 2024-07-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsJun 20242024-07-01 00:00:00 UTC to 2024-08-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments2024-08-01 00:00:00 UTC to 2024-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-01 00:00:00 UTC to 2024-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-10-01 00:00:00 UTC to 2024-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-01 00:00:00 UTC to 2024-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2025-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJan 20252025-02-01 00:00:00 UTC to 2025-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-01 00:00:00 UTC to 2025-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-04-01 00:00:00 UTC to 2025-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-05-01 00:00:00 UTC to 2025-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-06-01 00:00:00 UTC to 2025-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-07-01 00:00:00 UTC to 2025-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-08-01 00:00:00 UTC to 2025-09-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsAug 2025

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
Jun 20242024-06-01 00:00:00 UTC2024-07-01 00:00:00 UTC110
Jul 20242024-07-01 00:00:00 UTC2024-08-01 00:00:00 UTC110
Aug 20242024-08-01 00:00:00 UTC2024-09-01 00:00:00 UTC000
Sep 20242024-09-01 00:00:00 UTC2024-10-01 00:00:00 UTC000
Oct 20242024-10-01 00:00:00 UTC2024-11-01 00:00:00 UTC000
Nov 20242024-11-01 00:00:00 UTC2024-12-01 00:00:00 UTC000
Dec 20242024-12-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
Jan 20252025-01-01 00:00:00 UTC2025-02-01 00:00:00 UTC000
Feb 20252025-02-01 00:00:00 UTC2025-03-01 00:00:00 UTC000
Mar 20252025-03-01 00:00:00 UTC2025-04-01 00:00:00 UTC000
Apr 20252025-04-01 00:00:00 UTC2025-05-01 00:00:00 UTC000
May 20252025-05-01 00:00:00 UTC2025-06-01 00:00:00 UTC000
Jun 20252025-06-01 00:00:00 UTC2025-07-01 00:00:00 UTC000
Jul 20252025-07-01 00:00:00 UTC2025-08-01 00:00:00 UTC000
Aug 20252025-08-01 00:00:00 UTC2025-09-01 00:00:00 UTC101

What Hacker News says

3 sources
DemocracyFTW2·Aug 27, 2025
FWIW there's also https://github.com/slevithan/regex "JS regexes future. A template tag for readable, high-performance, native JS regexes with extended syntax, context-aware interpolation, and always-on best practices". From the docs: Highlights include support for insignificant whitespace and comments, atomic groups and possessive quantifiers (that can help you avoid ReDoS), subroutines and subroutine definition groups (that enable powerful subpattern composition), and context-aware interpolation of regexes, escaped strings, and partial patterns.
In Show HN: Regolith – Regex library that prevents ReDoS CVEs in TypeScript
slev·Jun 20, 2024Submission

Show HN: I made native JavaScript regexes competitive with the best re flavors

I'm a longtime regex superfan, having coauthored O'Reilly Media's Regular Expressions Cookbook and creating/contributing to a variety of open source regex tools. I also love JavaScript, but historically its regexes have been underpowered compared to other modern regex flavors. So I recently created a lightweight library that upgrades native JS regexes with key features that, when combined with all the latest improvements in ES2024, IMO makes JS regexes step up to being among the very best to use (competitive with PCRE and Perl and maybe surpassing Python, Ruby, Java, and .NET). It allows even long and complex regexes to be beautiful, grammatical, and easy to understand. Ideas/feedback about features you find especially useful from other programming languages and regex flavors is very welcome.
2 points · Open discussion

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