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24 lines
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24 lines
1.0 KiB
Markdown
# Step 2.6 - Redux: Dispatching actions and examining state (Exercise)
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[Lessons](../) | [Exercise](./exercise/) | [Demo](./demo/)
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## Visualize state changes with Chrome extension
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If you still have `npm test` running from the previous step, stop it with `ctrl+C`. Start the app by running `npm start` from the root of the `frontend-bootcamp` folder. Click the "exercise" link under day 2 step 6.
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1. Install the [Redux DevTools Chrome extension](https://chrome.google.com/webstore/detail/redux-devtools/lmhkpmbekcpmknklioeibfkpmmfibljd)
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2. Hit F12 (`cmd+option+I` on Mac) and open the inspector panel entitled **Redux**
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3. Modify `exercise/src/index.tsx` to dispatch actions (you're not limited to adding todos; you can also remove and clear)
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4. Explore the actions' effects using the extension
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## Playing with dispatching actions inside tests
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Stop the app using `ctrl+C` and start the tests by running `npm test`.
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1. Open `exercise/src/reducers/reducer.spec.ts`
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2. Follow the instructions to fill out the reducer tests
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