diff --git a/doc/FAQ/UsingRefs.md b/doc/FAQ/UsingRefs.md index 38cd14e..b2f062b 100644 --- a/doc/FAQ/UsingRefs.md +++ b/doc/FAQ/UsingRefs.md @@ -30,11 +30,11 @@ We'll start with a code fragment, because it is worth a 1000 words: Notes: 1. This example uses a Form-2 component, which allows us to retain state outside of the renderer `fn`. The same technique would work with a Form-3 component. 2. We capture state in `!video`. In this example, the state we capture is a reference to a [video HTML element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video). - 2. `!video` is a `clojure.core/atom` and not a `reaagent.core/atom`. We don't use a normal atom because refs never change during the lifecycle of a component and if we used a reagent atom, it would cause an unnecessary re-render when the ref callback mutates the atom. + 3. `!video` is a `clojure.core/atom` and not a `reaagent.core/atom`. We use a normal Clojure `atom` because refs never change during the lifecycle of a component and if we used a reagent atom, it would cause an unnecessary re-render when the ref callback mutates the atom. 4. On the `:video` component there's a `:ref` callback function which establishes the state in `!video`. You can attach a ref callback to any of the Hiccup elements. 5. Thereafter, `@!video` is used with the `:button's` `:on-click` to manipulate the `video` DOM methods. - 5. For full notes [read Paulus' blog post](https://presumably.de/reagent-mysteries-part-3-manipulating-the-dom.html) - 6. For more background on callback refs, see [React's documentation](https://facebook.github.io/react/docs/more-about-refs.html) + 6. For full notes [read Paulus' blog post](https://presumably.de/reagent-mysteries-part-3-manipulating-the-dom.html) + 7. For more background on callback refs, see [React's documentation](https://facebook.github.io/react/docs/more-about-refs.html) ***