wishthis/node_modules/stream-exhaust/README.md
2022-01-21 09:28:41 +01:00

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# stream-exhaust
Ensure that the provided stream is flowing data, even if the stream hasn't been
piped to another stream.
```javascript
var exhaustively = require('stream-exhaust');
exhaustively(fs.createReadStream(__filename))
.on('close', () => { console.log('all done, despite being streams{1+N}!') });
```
## Prior Art
This is based on [stream-consume](https://github.com/aroneous/stream-consume)
by [aroneous](https://github.com/aroneous). It is a separate package because it has
different semantics:
1. It does not call `.resume()` on streams2+ streams. streams2 streams monkeypatch `.pipe`
when entering flowing mode; avoiding `resume()` avoids that fate.
2. It does not examine `._readableState`; instead it checks for the presence of `._read`.
## API
### exhaust(Stream s) -> Stream s
Takes a stream, `s`, and returns it. Ensures that the stream is flowing, either by calling
`.resume()` if the stream is a streams1 stream, or by piping it to a "black hole" stream that
continually asks for more data.
## License
MIT