| 1 | #through
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| 2 |
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| 3 | [](http://travis-ci.org/dominictarr/through)
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| 4 |
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| 5 | 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.
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| 6 | Use `this.pause()` and `this.resume()` to manage flow.
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| 7 | Check `this.paused` to see current flow state. (write always returns `!this.paused`)
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| 8 |
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| 9 | this function is the basis for most of the syncronous streams in [event-stream](http://github.com/dominictarr/event-stream).
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| 10 |
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| 11 | ``` js
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| 12 | var through = require('through')
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| 13 |
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| 14 | through(function write(data) {
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| 15 | this.emit('data', data)
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| 16 | //this.pause()
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| 17 | },
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| 18 | function end () { //optional
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| 19 | this.emit('end')
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| 20 | })
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| 21 |
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| 22 | ```
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