# react-useeffect

Skill · `skill:react-useeffect`

Favz census, built 2026-10-04. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-react-useeffect.html

- Repos that have it now: 26
- Repos that ever had it: 28
- Still have it: 93%
- Share of census repos with any tool: 0.03%

## Repos with it, by month

From commit dates in each repo's history. The last few days always look low, because repos found later fill them in.

| Month | Repos at month end |
|---|---|
| 2026-01 | 2 |
| 2026-02 | 8 |
| 2026-03 | 13 |
| 2026-04 | 15 |
| 2026-05 | 17 |
| 2026-06 | 21 |
| 2026-07 | 22 |
| 2026-08 | 23 |
| 2026-09 | 26 |

## Goes with

Tools found in the same repos, ranked by lift: 3× means the two show up together three times as often as chance would give. Only pairs sharing 5 or more repos.

| Tool | Kind | Repos with both | Lift |
|---|---|---|---|
| [database-schema-designer](https://favz.co/tools/skill-database-schema-designer.md) | Skill | 5 | 649.9× |
| [architecture-decision-records](https://favz.co/tools/skill-architecture-decision-records.md) | Skill | 5 | 219.2× |
| [codex](https://favz.co/tools/skill-codex.md) | Skill | 5 | 195.7× |
| [vercel-composition-patterns](https://favz.co/tools/skill-vercel-composition-patterns.md) | Skill | 5 | 73.7× |
| [web-design-guidelines](https://favz.co/tools/skill-web-design-guidelines.md) | Skill | 14 | 69.3× |
| [vercel-react-best-practices](https://favz.co/tools/skill-vercel-react-best-practices.md) | Skill | 7 | 42.5× |
| [frontend-design](https://favz.co/tools/skill-frontend-design.md) | Skill | 5 | 10.2× |