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Merge pull request #2018 from samselikoff/patch-2 

Clarify section introducing callbacks
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Cheng Lou 2014-08-10 13:59:20 -07:00
parent 68930ad4a6 90888debd0
commit 82da739d9e
1 changed files with 1 additions and 1 deletions
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docs/docs/tutorial.md
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@ -519,7 +519,7 @@ We use the `ref` attribute to assign a name to a child component and `this.refs`
When a user submits a comment, we will need to refresh the list of comments to include the new one. It makes sense to do all of this logic in `CommentBox` since `CommentBox` owns the state that represents the list of comments.
We need to pass data from the child component to its parent. We do this by passing a `callback` in props from parent to child:
We need to pass data from the child component back up to its parent. We do this in our parent's `render` method by passing a new callback (`handleCommentSubmit`) into the child, binding it to the child's `onCommentSubmit` event. Whenever the event is triggered, the callback will be invoked:
```javascript{15-17,30}
// tutorial17.js