62 lines
1.6 KiB
Markdown
62 lines
1.6 KiB
Markdown
# drop-stream [](https://gemnasium.com/schnittstabil/drop-stream) [](https://travis-ci.org/schnittstabil/drop-stream) [](https://coveralls.io/r/schnittstabil/drop-stream)
|
|
|
|
A Duplex stream which discards all chunks passed through.
|
|
|
|
## Usage
|
|
|
|
Install using:
|
|
|
|
```bash
|
|
npm install drop-stream --save
|
|
```
|
|
|
|
Then pipe through a drop instance:
|
|
|
|
```Javascript
|
|
var DropStream = require('drop-stream'),
|
|
PassThrough = require('stream').PassThrough,
|
|
opts = {objectMode: true},
|
|
pre = new PassThrough(opts),
|
|
drop = DropStream.obj(),
|
|
post = new PassThrough(opts),
|
|
count = 0;
|
|
|
|
post.on('data', function() {
|
|
count++;
|
|
});
|
|
|
|
post.on('finish', function() {
|
|
assert.strictEqual(count, 0, count + ' chunks detected'); // won't throw
|
|
});
|
|
|
|
pre.pipe(drop).pipe(post);
|
|
|
|
pre.write('foo');
|
|
pre.write(1);
|
|
pre.write({ foobar: 'foobar', answer: 42 });
|
|
pre.write('bar');
|
|
pre.end();
|
|
```
|
|
|
|
## API
|
|
|
|
### Class: DropStream
|
|
|
|
Drop streams are [Transform](http://nodejs.org/api/stream.html#stream_class_stream_transform) streams.
|
|
|
|
#### new DropStream([options])
|
|
|
|
* _options_ `Object` passed through [new stream.Transform([options])](http://nodejs.org/api/stream.html#stream_new_stream_transform_options)
|
|
|
|
Note: The `new` operator can be omitted
|
|
|
|
#### DropStream#obj([options])
|
|
|
|
A convenience wrapper for `new DropStream({objectMode: true, ...})`.
|
|
|
|
## License
|
|
|
|
Copyright (c) 2014 Michael Mayer
|
|
|
|
Licensed under the MIT license.
|