As a member of the Valstro UI Engineering team, you'll be building a multi-window & multi-process frontend application, which regularly interacts with event-driven APIs.
The purpose of this assessment is to show that you can build an extremely simple reactive application that shares its state across mutliple windows through an event-based architecture using the Broadcast Channel API & the localStorage API.
- Clone the repo & cd into it.
- Run
yarn install - Followed by
yarn devto start the development server
Build a simple message board in ReactJS & TypeScript, which allows you to post text-based messages to a list, with the capability to delete individual messages.
- The list must persist when the page is refreshed using localStorage
- The list must update in real-time across multiple windows/tabs using BroadcastChannel
- Do not install new NPM packages, you can only work with what's in
package.json
- Use a reducer (useReducer) & the flux pattern
- Use typesafe & flux standard actions
- Use react's native hooks & your own custom hooks
- Implement simple & clean styles using CSS best practices
- Highlight in the list which messages are from the sender, and which are from a receiver
- Think about a11y, dark mode & responsive-design
- Use RxJS in some relevant way
The project should take no longer than 2-4 hours to complete. If you've not had experience with some of the technologies above and you'd like to spend more time, take as long as you need.
There's no requirement to copy the example's design/ui. Feel free to use your own flare.
YouTube Video: https://www.youtube.com/watch?v=dcfxyFoRMlU
