leonardomso/33-js-concepts
📜 33 JavaScript concepts every developer should know.
66.5k stars · 9.1k forks · JavaScript
At risk
At risk: one person wrote most commits, and no one has committed by hand in 90 days.
Why
- One person wrote 97% of human commits in the last year, and no human has committed in the last 90 days. (source 1, source 2)
What would change this
- A human commit in the last 90 days, or a second person taking a large share of commits.
Maintenance
CompleteSlowing
- Human commits, 30 days
- 0
- Human commits, 90 days
- 0
- Human commits, 365 days
- 198
- Bot share of commits, 365 days
- 2%
- Last commit
- Jun 6, 2026 (4 months ago)
- Last human commit
- Jun 6, 2026 (4 months ago)
- Authors, 90 days
- 0
- Last release
- none found
- Median PR merge time
- 3 days
Responsiveness: of 1 recent issues, n/a got a maintainer reply. Median first response: n/a.
- Only 1 recent issues can be checked for a response, too few to measure response time.
Sources: Commits, Releases, Merged pull requests, Issues
People
Complete- Owner
- Personal account
- Commits sampled
- 198 since Oct 14, 2025
- Authors for half of commits
- 1
- Authors for 80% of commits
- 1
- Contributors
- 200
Top committers
- leonardomso: 97% of commits
- 0mega28: 1% of commits
- pgoslatara: 1% of commits
- rem4d: 1% of commits
- richard-wollyce: 1% of commits
Sources: Commits, Contributors
Stars
CompleteMostly organic, confidence high
Bursts
- Oct 15, 2018 to Nov 18, 2018: about 17.1k more stars than usual, peak 3.4k in one day, a spike that tapers off. Outside explanation: a Hacker News post.
- Dec 14, 2018 to Dec 19, 2018: about 1.1k more stars than usual, peak 645 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
- Apr 22, 2019 to Apr 24, 2019: about 85 more stars than usual, peak 53 in one day, a spike that tapers off. Outside explanation: a jump in forks.
- Oct 17, 2019 to Oct 22, 2019: about 216 more stars than usual, peak 76 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
- Nov 12, 2019 to Nov 13, 2019: about 134 more stars than usual, peak 80 in one day, a spike that tapers off. Outside explanation: a jump in forks.
- Jul 20, 2020 to Jul 24, 2020: about 98 more stars than usual, peak 40 in one day, a shape we can't classify. We couldn't check for an outside explanation.
- Jan 1, 2021 to Jan 7, 2021: about 1.1k more stars than usual, peak 422 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Feb 16, 2021 to Feb 18, 2021: about 78 more stars than usual, peak 47 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Mar 9, 2021 to Mar 13, 2021: about 545 more stars than usual, peak 189 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Apr 11, 2021 to Apr 13, 2021: about 428 more stars than usual, peak 203 in one day, a flat block of stars. We couldn't check for an outside explanation.
- Jun 2, 2021 to Jun 5, 2021: about 242 more stars than usual, peak 136 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Jul 5, 2021 to Jul 13, 2021: about 717 more stars than usual, peak 274 in one day, a spike that tapers off. Outside explanation: a Hacker News post.
- Aug 7, 2021 to Aug 10, 2021: about 498 more stars than usual, peak 226 in one day, a shape we can't classify. We couldn't check for an outside explanation.
- Oct 15, 2021 to Oct 24, 2021: about 454 more stars than usual, peak 106 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Nov 6, 2021 to Nov 9, 2021: about 164 more stars than usual, peak 101 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Jan 20, 2022 to Jan 22, 2022: about 133 more stars than usual, peak 83 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Feb 15, 2022 to Feb 22, 2022: about 462 more stars than usual, peak 136 in one day, a shape we can't classify. We couldn't check for an outside explanation.
- Jul 27, 2022 to Aug 2, 2022: about 318 more stars than usual, peak 119 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Aug 12, 2022 to Aug 18, 2022: about 383 more stars than usual, peak 107 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
- Nov 6, 2022 to Nov 10, 2022: about 299 more stars than usual, peak 98 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
- Nov 21, 2022 to Nov 28, 2022: about 185 more stars than usual, peak 47 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
- Dec 28, 2022 to Dec 29, 2022: about 105 more stars than usual, peak 89 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Jan 29, 2023 to Feb 2, 2023: about 238 more stars than usual, peak 107 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- May 22, 2023 to May 23, 2023: about 56 more stars than usual, peak 46 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Jul 30, 2023 to Aug 3, 2023: about 80 more stars than usual, peak 38 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Sep 26, 2023 to Oct 11, 2023: about 1.1k more stars than usual, peak 224 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
- Jan 11, 2024 to Jan 19, 2024: about 372 more stars than usual, peak 97 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
- Jan 23, 2024 to Jan 25, 2024: about 53 more stars than usual, peak 35 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Dec 19, 2024 to Dec 23, 2024: about 114 more stars than usual, peak 38 in one day, a flat block of stars. No outside explanation found, so this burst is unexplained.
- 5 stars GitHub has since removed (tracked since Oct 13, 2026).
Anyone can buy stars for any repo; bursts alone don't prove the owner did.
- Anyone can buy stars for any repo, so this describes the star history only.
Sources: How star history is analyzed
Risk
CompleteFlags
No risk flags.
License
- Now
- MIT (OSI-approved)
- A year ago
- MIT (OSI-approved)
Packages
No published packages found.
OpenSSF Scorecard: 4.2 out of 10 (via deps.dev).
Sources: GitHub: leonardomso/33-js-concepts
Badge
Add this to a README to show the current verdict:
[](https://reporadar.ai/leonardomso/33-js-concepts)Earlier verdicts
- Oct 14, 2026: At risk
- Oct 13, 2026: At risk
- Oct 13, 2026: At risk
Computed 18 hours ago · method 2026.10.2