frontend-bootcamp/step2-08/exercise

Step 2.8: Reduce Boilerplate (Exercise)

Lessons | Exercise | Demo

Exercise

If you don't already have the app running, start it by running npm start from the root of the frontend-bootcamp folder. Click the "exercise" link under day 2 step 8 to see results.

Hint! This section is tricky, so all the solution is inside "demo" as usual. Feel free to copy & paste if you get stuck!!

1. open up exercise/src/reducers/index.ts

2. rewrite the reducer functions todoReducers, filterReducers with the help of createReducer()

3. rewrite the reducer() function with combineReducer()

4. open up exercise/src/reducers/pureFunctions.ts

5. rewrite all the reducers related to the todos by following instructions

Further reading

• immer: https://github.com/mweststrate/immer - improves ergonomics of working with immutables by introducing the concept of mutating a draft

• redux-starter-kit: https://github.com/reduxjs/redux-starter-kit - help address common concerns of Redux in boilerplate and complexity