rafa/docs/Stream-toProperty.md

Rafa.js is a Javascript framework for building concurrent applications.

Return a new Property object whose value initially contains `seed` and is 
updated/set when a new value is received from upstream nodes.

<aside>
```js
// toProperty(seed: A): Property
var stream = Rafa.stream();
var property = stream.toProperty();

stream.write(1);
// property.get(): 1

stream.write(2);
// property.get(): 2
```
</aside>