35 lines
795 B
Markdown
35 lines
795 B
Markdown
---
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title: Dynamic Imports for Heavy Components
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impact: CRITICAL
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impactDescription: directly affects TTI and LCP
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tags: bundle, dynamic-import, code-splitting, next-dynamic
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---
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## Dynamic Imports for Heavy Components
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Use `next/dynamic` to lazy-load large components not needed on initial render.
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**Incorrect (Monaco bundles with main chunk ~300KB):**
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```tsx
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import { MonacoEditor } from "./monaco-editor";
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function CodePanel({ code }: { code: string }) {
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return <MonacoEditor value={code} />;
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}
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```
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**Correct (Monaco loads on demand):**
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```tsx
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import dynamic from "next/dynamic";
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const MonacoEditor = dynamic(() => import("./monaco-editor").then((m) => m.MonacoEditor), {
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ssr: false,
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});
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function CodePanel({ code }: { code: string }) {
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return <MonacoEditor value={code} />;
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}
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```
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