This is a flashcard application made with React. There are two views (each of which is a class component): Editor view, where you can manually add new cards to the game, and Viewer view, where you can view cards one by one, or switch to a new card.
This projects uses concepts like this.props and this.state to alter the page according to user input.
This project is part of the CS50 Beyond course, a follow up to Harvard's CS50 Introduction to Computer Science course.