advanced-use-latest
Access latest values in callbacks without adding them to dependency arrays. Prevents effect re-runs while avoiding stale closures.
- Skills
- Web development
- 2
What it does and how to use it
A skill that teaches Claude Code to do web development tasks well. It is packaged knowledge the model uses whenever it is relevant.
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Install (Claude Code)
mkdir -p .claude/skills/advanced-use-latest && curl -fsSL https://doutorai.pt/data/lib/skills__advanced-use-latest.md -o .claude/skills/advanced-use-latest/SKILL.mdPaste this command into the terminal, in your project folder, and the component installs automatically.
Content
---
title: useLatest for Stable Callback Refs
impact: LOW
impactDescription: prevents effect re-runs
tags: advanced, hooks, useLatest, refs, optimization
---
## useLatest for Stable Callback Refs
Access latest values in callbacks without adding them to dependency arrays. Prevents effect re-runs while avoiding stale closures.
**Implementation:**
```typescript
function useLatest<T>(value: T) {
const ref = useRef(value)
useEffect(() => {
ref.current = value
}, [value])
return ref
}
```
**Incorrect (effect re-runs on every callback change):**
```tsx
function SearchInput({ onSearc
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