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update info on buffer #1689

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update info on buffer #1689

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12 changes: 12 additions & 0 deletions runtime/fundamentals/node.md
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Original file line number Diff line number Diff line change
Expand Up @@ -551,6 +551,18 @@ import { Buffer } from "node:buffer";
const buf = new Buffer(5, "0");
```

For TypeScript users needing Node.js-specific types like `BufferEncoding`, these
are available through the `NodeJS` namespace when using `@types/node`:

```ts title="buffer-types.ts"
/// <reference types="npm:@types/node" />

// Now you can use NodeJS namespace types
function writeToBuffer(data: string, encoding: NodeJS.BufferEncoding): Buffer {
return Buffer.from(data, encoding);
}
```

Prefer using
[`Uint8Array`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array)
or other
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