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Tommaso CasaburiandGitHub
a92b185a66
* chore(ai-workflow): track repo-managed review tooling * fix(ai-workflow): remove repo-specific path assumptions Make shared workflow hooks and APK testing guidance resolve paths from the repo and contributor environment so the tooling works for all contributors, not just one machine.
47 lines
1.0 KiB
Markdown
47 lines
1.0 KiB
Markdown
---
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title: Hoist Static JSX Elements
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impact: LOW
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impactDescription: avoids re-creation
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tags: rendering, jsx, static, optimization
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---
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## Hoist Static JSX Elements
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Extract static JSX outside components to avoid re-creation.
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**Incorrect (recreates element every render):**
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```tsx
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function LoadingSkeleton() {
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return <div className="animate-pulse h-20 bg-gray-200" />
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}
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function Container() {
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return (
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<div>
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{loading && <LoadingSkeleton />}
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</div>
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)
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}
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```
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**Correct (reuses same element):**
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```tsx
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const loadingSkeleton = (
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<div className="animate-pulse h-20 bg-gray-200" />
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)
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function Container() {
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return (
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<div>
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{loading && loadingSkeleton}
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</div>
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)
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}
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```
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This is especially helpful for large and static SVG nodes, which can be expensive to recreate on every render.
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**Note:** If your project has [React Compiler](https://react.dev/learn/react-compiler) enabled, the compiler automatically hoists static JSX elements and optimizes component re-renders, making manual hoisting unnecessary.
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