At CSC Engineering we help distressed retail and e-commerce brands get their technology right. We frequently work with codebases that were not well maintained. Even with modern frameworks.
So we improve the codebase as we go. We don't just implement new features. We refactor, make the code maintainable and install best practices.
We use the boy scout rule - shout out to Uncle Bob. "Always leave the campground cleaner than you found it." In other words, check a module in better than when you checked it out.
A confusing piece of code takes more time than necessary to understand it. Every time we encounter such a piece of code, it's a chance to improve it - write a test, extract a variable or a function, move pieces of code.
This simplified scenario is designed to test if you subscribe to this ideology. We want to see how you operate.
We're looking at a Scout Essentials cart page. It uses React, but the code isn't clean.
You need to implement one new feature. We expect that you improve the readability and maintainability of the codebase when you're done. Do whatever you would in real life. Don't hesitate. Take action.
If you click 'Add to Cart' 3 times, it will look like this:
Trail Mix
Trail Mix
Trail Mix
Make it look like this:
Trail Mix x 3
This project was bootstrapped with Create React App, using the Redux and Redux Toolkit template.
In the project directory, you can run:
Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.
The page will reload if you make edits.
You will also see any lint errors in the console.
Launches the test runner in the interactive watch mode.
See the section about running tests for more information.
Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.
Your app is ready to be deployed!
See the section about deployment for more information.
Note: this is a one-way operation. Once you eject, you can’t go back!
If you aren’t satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (Webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
You don’t have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
You can learn more in the Create React App documentation.
To learn React, check out the React documentation.