microsoft/frontend-bootcamp
1
0
Fork 0
mirror of https://github.com/microsoft/frontend-bootcamp.git synced 2026-01-26 14:56:42 +08:00
Code Issues Packages Projects Releases Wiki Activity

More day 1 updates

Browse Source
This commit is contained in:
Elizabeth Craig
2019-02-28 00:05:25 -08:00
parent dac6f4b5d8
commit 9007b137ca
9 changed files with 67 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
step1-07/exercise/README.md
View File

@@ -2,19 +2,26 @@
### TodoFooter
1. Open TodoFooter and write a TodoFooterProps interface. It should include two values, a function and an object. Assign this interface to props like this: `(props: TodoFooterProps)`
1. Open TodoFooter and write a TodoFooterProps interface. It should include two values, a function and an object. Use this interface in the function props like this: `(props: TodoFooterProps)`
2. Write an `_onClick` function that calls `props.clear`.
> Since TodoFooter is not a class the `_onClick` needs to be declared as a const, and placed before the `return`.
3. Add `_onClick` to the button's `onClick`. You won't need to use `this` since this isn't a class.
> We can't assign our `clear` function directly to `onClick`. We always need to create a function that calls our callbacks. `() => props.clear()`
4. Test out this functionality. Check a few todos complete and click the `Clear Completed` button
> Since TodoFooter is not a class, the `_onClick` function needs to be stored in a const placed before the `return`.
3. Assign `_onClick` to the button's `onClick` prop. You won't need to use `this` since the component isn't a class.
4. Test out this functionality. Check a few todos complete and click the `Clear Completed` button.
### TodoHeader
1. Open TodoHeader and write TodoHeaderProps which will include 3 values. Replace the first `any` with this interface.
2. This component also has state. Write TodoHeaderState (there's just one item), and add this where the second `any` was.
1. Open TodoHeader and write TodoHeaderProps which will include three values. Replace the first `any` in the class declaration with this interface.
2. This component also has state. Write TodoHeaderState (there's just one value), and add this where the second `any` was.
3. Add `_onFilter` to each of the filter buttons
> Note that we can't add new parameters to onClick, but we can pull information from the event target!
4. Write an `_onAdd` method that calls `addTodo` on the current `labelInput`, then sets the `labelInput` in state to an empty string
5. Call `_onAdd` from the submit button
6. Check out this new functionality! We can now add and filter todos!