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

Update README.md

Browse source
This commit is contained in:
Aaron Craelius 2014-11-17 16:24:51 -05:00
parent 91a64c233f
commit 8a3a4df52c
1 changed files with 9 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
README.md
View file

@ -96,6 +96,15 @@ Fundamentally, cursors are based on [lenses](https://speakerdeck.com/markhibberd
```clojure
(def my-atom (atom 0))
(defn print-number [my-atom-state]
;; print the number with some formmating
)
(defn parse-number [my-atom-state new-cursor-state]
;; parse new-cursor-state into a number and return it
;; if parsing fails you can just return my-atom-state
;; to cancel the update or throw a validation
;; exception
)
(def a-str (cursor my-atom print-number parse-number))
;; @a-str -> "0"
(reset! a-str "1.2")