40 lines
828 B
Markdown
40 lines
828 B
Markdown
---
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layout: default
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---
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# CheerioWebBaseLoader
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<v-clicks>
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Carga páginas web como documentos (sin ejecutar JavaScript)
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### Instalación
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```bash
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npm install @langchain/community cheerio
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```
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### Uso
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```typescript
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import "cheerio";
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import { CheerioWebBaseLoader } from
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"@langchain/community/document_loaders/web/cheerio";
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const loader = new CheerioWebBaseLoader(
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"https://blog.langchain.dev/what-is-an-agent/",
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{ selector: "article" } // selector CSS para filtrar contenido
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);
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const docs = await loader.load();
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console.log(docs[0].pageContent.substring(0, 300));
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console.log(docs[0].metadata);
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// { source: 'https://blog.langchain.dev/...', title: '...' }
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```
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<div class="mt-4 p-4 bg-yellow-500/10 rounded">
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⚠️ Para SPAs o páginas con JS dinámico, usa <b>Playwright</b> o <b>Puppeteer</b>
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</div>
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</v-clicks>
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