4.0

[curran]

Implements 4.0 Ideas #42

• [x] ~#43 Rename the exported global~
• [X] #44 Rename dependencies to inputs
• [X] #45 Eliminate set
• [X] #46 Eliminate get
• [X] #47 Pass dataflow instance into reactive functions

Interestingly, these changes reduce the minified build from 825 to 760 bytes.

Reviews welcome!

[curran]

I'm having second thoughts on the naming.

Perhaps instead of

const dataflow = topologica()

we could have

const topologica = Topologica()

Pros:

• It would be a clear signal to anyone reading the code that they are dealing with an instance of Topologica.js, which is not necessarily clear if you come across dataflow in code somewhere.
• It's less cognitive burden.
• It follows the object oriented convention where instances are lower case versions of their constructors.

Cons:

• It's a rather abstract name for the instance, but at least it makes it clear what it is. Is it a state? is it a dataflow? No, it's a topologica! This feels right, as the concept is pretty unique to this library. Although, it would be interesting to research what other libraries use for this term - the instance of the reactive thing.