Skip to content

Clarify section introducing callbacks #2018

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
chenglou merged 1 commit into from
Aug 10, 2014
Merged

Clarify section introducing callbacks #2018

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion docs/docs/tutorial.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down