mirror of
https://github.com/kjanat/livedash-node.git
synced 2026-02-14 00:35:46 +01:00
Kaj Kowalski
cd05fc8648
- Fix syntax errors in skills markdown files (.github/skills, .opencode/skills) - Change typescript to tsx for code blocks with JSX - Replace ellipsis (...) in array examples with valid syntax - Separate CSS from TypeScript into distinct code blocks - Convert JavaScript object examples to valid JSON in docs - Fix enum definitions with proper comma separation
37 lines
993 B
Markdown
37 lines
993 B
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 <div>{loading && <LoadingSkeleton />}</div>;
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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 = <div className="animate-pulse h-20 bg-gray-200" />;
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function Container() {
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return <div>{loading && loadingSkeleton}</div>;
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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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