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28 lines
920 B
Markdown
28 lines
920 B
Markdown
# Step 2.4 - React Context (Exercise)
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[Lessons](../) | [Exercise](./exercise/) | [Demo](./demo/)
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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 4 to see results.
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## TodoContext.Provider Component
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1. Open `exercise/src/components/TodoApp.tsx`
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2. Uncomment the missing functions inside the value prop
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## TodoFooter, Context inside Functional Component
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1. Open `exercise/src/components/TodoFooter.tsx`
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2. Replace the two constants by using useContext(TodoContext)
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## TodoHeader, Context inside Class Component
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1. Open `exercise/src/components/TodoHeader.tsx`
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2. Replace the `onAdd` with a real implementation using the `this.context` object
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3. Replace the `onFilter` with a real implementation using the `this.context` object
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4. Be sure to set the `contextType` of the TodoHeader component
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