Homework 5: Optimization
Release: Friday, November 21, 2025 at 6:00:00 PM
Due: Wednesday, December 3, 2025 at 2:00:00 PM
Quickstart
Section titled “Quickstart”Create a new private repository under your own GitHub account from this template.
Installing required packages
Section titled “Installing required packages”Open the terminal window and type in npm install. This will install all the
dependencies listed in the package.json file.
Skeleton code
Section titled “Skeleton code”The homework provided is focused on optimizing React applications using various
performance-enhancing techniques. You will work through four problems, each located in the /src/components folder.
- Memoize expensive calculation results with useMemo
- Prevent UI blocking with Web Workers
- Optimize event handlers with useCallback and memo
- Virtualize long lists with react-window
Running the application
Section titled “Running the application”To run the application, type npm run dev in the terminal. This will start the development server and open the application in your default web browser.
Deliverables
Section titled “Deliverables”Your submission should properly implement optimization techniques according to the instructions for each of the problems.
Testing
Section titled “Testing”To test your implementation, run npm run test.
Points Breakdown
Section titled “Points Breakdown”| Problem | Points |
|---|---|
| useMemo | 25 |
| Web Workers | 25 |
| useCallback | 25 |
| List Virtualization | 25 |
Due Date
Section titled “Due Date”This homework is due on Wednesday, December 3, 2025 at 2:00:00 PM.