Getting Started with React
summary
Builds a tiny app step by step, starting from manual DOM updates to JSX compiled with Babel via unpkg, mounting with react-dom.render, and then composing components with props. Implements a live like button using the useState hook, renders a speakers list with array.map and the required key prop, and explains why Next.js is used to add production-ready configuration and routing. Code demos run in the browser and show working interactivity.
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