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Merge pull request #398 from romankrru/docs-managing-state-fix-typo 

Docs: Fix typo
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Juho Teperi 2018-09-03 10:25:29 +03:00 committed by GitHub
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doc/ManagingState.md
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@ -176,8 +176,9 @@ Reactions are what give `r/atom`, `r/cursor`, and function `r/cursor` and `r/wra
* `derefed` **TODO unclear**
Reactions are very useful when
* You need a way in which components only updates based on part of the ratom state. (reagent/cursor can also be used for this scenario)
* When you want to combine two `ratoms` and produce a result
* When you want to combine two `ratoms` and produce a result
* You want the component to use some transformed value of `ratom`
Here's an example:
@ -186,19 +187,19 @@ Here's an example:
:var-b 3}
:state-var-2 {:var-a 7
:var-b 9}}))
(def app-var2-reaction (reagent.ratom/make-reaction
(def app-var2-reaction (reagent.ratom/make-reaction
#(get-in @app-state [:state-var-2 :var-a])))
(defn component-using-make-reaction []
[:div
[:div "component-using-make-reaction"]
[:div "Sate 2 - var a : " @app-var2-reaction]])
```
```
The below example uses `reagent.ratom/reaction` macro, which provides syntactic sugar around creating reaction using `make-reaction`
The below example uses `reagent.ratom/reaction` macro, which provides syntactic sugar around creating reaction using `make-reaction`
```
(let [username (reagent/atom "")