`readable.setEncoding(null)` - may be the most preferable way to proxy
a binary data without any encoding/decoding overhead
PR-URL: https://github.com/nodejs/node/pull/5155
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
called [`buf.toString(encoding)`][] on them. If you want to read the data
as strings, always use this method.
+Also you can disable any encoding at all with `readable.setEncoding(null)`.
+This approach is very useful if you deal with binary data or with large
+multi-byte strings spread out over multiple chunks.
+
```js
var readable = getReadableStreamSomehow();
readable.setEncoding('utf8');