mirror of
https://github.com/kjanat/livedash-node.git
synced 2026-02-13 23:35:45 +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
45 lines
1.1 KiB
Markdown
45 lines
1.1 KiB
Markdown
---
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title: Preload Based on User Intent
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impact: MEDIUM
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impactDescription: reduces perceived latency
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tags: bundle, preload, user-intent, hover
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---
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## Preload Based on User Intent
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Preload heavy bundles before they're needed to reduce perceived latency.
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**Example (preload on hover/focus):**
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```tsx
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function EditorButton({ onClick }: { onClick: () => void }) {
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const preload = () => {
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if (typeof window !== "undefined") {
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void import("./monaco-editor");
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}
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};
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return (
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<button onMouseEnter={preload} onFocus={preload} onClick={onClick}>
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Open Editor
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</button>
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);
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}
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```
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**Example (preload when feature flag is enabled):**
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```tsx
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function FlagsProvider({ children, flags }: Props) {
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useEffect(() => {
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if (flags.editorEnabled && typeof window !== "undefined") {
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void import("./monaco-editor").then((mod) => mod.init());
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}
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}, [flags.editorEnabled]);
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return <FlagsContext.Provider value={flags}>{children}</FlagsContext.Provider>;
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}
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```
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The `typeof window !== 'undefined'` check prevents bundling preloaded modules for SSR, optimizing server bundle size and build speed.
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