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: readme.markdown

#through

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Easy way to create a `Stream` that is both `readable` and `writable`.

* Pass in optional `write` and `end` methods.
* `through` takes care of pause/resume logic if you use `this.queue(data)` instead of `this.emit('data', data)`.
* Use `this.pause()` and `this.resume()` to manage flow.
* Check `this.paused` to see current flow state. (`write` always returns `!this.paused`).

This function is the basis for most of the synchronous streams in 
[event-stream](http://github.com/dominictarr/event-stream).

``` js
var through = require('through')

through(function write(data) {
    this.queue(data) //data *must* not be null
  },
  function end () { //optional
    this.queue(null)
  })
```

Or, can also be used _without_ buffering on pause, use `this.emit('data', data)`,
and this.emit('end')

``` js
var through = require('through')

through(function write(data) {
    this.emit('data', data)
    //this.pause() 
  },
  function end () { //optional
    this.emit('end')
  })
```

## Extended Options

You will probably not need these 99% of the time.

### autoDestroy=false

By default, `through` emits close when the writable
and readable side of the stream has ended.
If that is not desired, set `autoDestroy=false`.

``` js
var through = require('through')

//like this
var ts = through(write, end, {autoDestroy: false})
//or like this
var ts = through(write, end)
ts.autoDestroy = false
```

## License

MIT / Apache2

NAME	TYPE	LAST MODIFIED	SIZE	OWNER / GROUP	PERMISSIONS	ACTION
..
.travis.yml	f!le	2022-12-14 6:08	54 B	root / root	-rw-r--r--
LICENSE.APACHE2	f!le	2022-12-14 6:08	586 B	root / root	-rw-r--r--
LICENSE.MIT	f!le	2022-12-14 6:08	1.06 KB	root / root	-rw-r--r--
index.js	f!le	2022-12-14 6:08	2.56 KB	root / root	-rw-r--r--
package.json	f!le	2022-12-14 6:08	1.64 KB	root / root	-rw-r--r--
readme.markdown	f!le	2022-12-14 6:08	1.63 KB	root / root	-rw-r--r--

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