Lesson 5 — Foundations Quiz Cheat Sheet

React

In one line: Every quiz question maps back to a rule from Lessons 1-4 — review these before retaking the quiz.

Rules Tested

1JSX compiles to React.createElement() calls.

2className replaces class; camelCase events.

3Lists need a unique key prop.

4Props flow parent → child, read-only.

Vite scaffold command

npm create vite@latest

Functional component

A function returning JSX

Virtual DOM

In-memory diffing for fast updates