yogsototh/freactive
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Update DOM.md

Browse source
This commit is contained in:
Aaron Craelius 2014-11-16 12:26:26 -05:00
parent d3cbf2987f
commit 8cdc334bb9
1 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
DOM.md
View file

@ -57,7 +57,15 @@ TODO
## Cursors
TODO
`cursor`s in freactive behave and look exactly like `atom`'s. You can use Clojurescript's built-in `swap!` and `reset!` functions on them and state will be propogated back to their parents. By default, change notifications from the parent propagate to the cursor when and only when they affect the state of the cursor.
cursors can be created by passing in a path that would be passed to `get-in` or `assoc-in` to the `cursor` function:
```clojure
(cursor my-atom [:a :b 0])
```
Fundamentally, however, cursors are based on [lenses](https://speakerdeck.com/markhibberd/lens-from-the-ground-up-in-clojure)! That means that you can pass any arbitrary getter (of the form `(fn [parent-state])`) and setter (of the form `(fn [parent-state cursor-state])`) and the cursor will handle it.
## Items View