Store map doesn't hold value for get.

[SimonRichardson]

I'm not sure if this is correct or not, considering I've never used a store before so could be completely wrong!

But if you try:

var Store = require('fantasy-stores'),
    target,
    store = Store(
      function(x) { return target = x; },
      function() { return target; }
    ),
    newStore;

store.set(1);

console.log(store.get());

newStore = store.map(function(a) { return a + 1; });

console.log(newStore.set(1)); // outputs 2.
console.log(newStore.get()); // outputs 1.

Try here on requirebin.

I would expect the third console.log to output 2 as well or am I completely missing the point?

Cheers
Simon.

[puffnfresh]

Not missing the point - but get doesn't do what you want in this case. What we need is extract:

4 == (extract . fmap (*2) $ store (+1) 1)

Comonads! Awesome, right? Also means we should have extend.

[puffnfresh]

Oh, looks like we already have that:

> store(function(x) { return x + 1; }, function() { return 1; }).map(function(x) { return x * 2; }).extract()
4

[SimonRichardson]

Ah, that does make sense now.
Cheers