Ever wondered why the React entry point is named app.js instead of app.jsx?

Contrary to what you might think, the choice of extension is more of a convention than a limitation. While .jsx is the superhero in our React code, our entry point file stays cool with a .js cape.

JSX, the magic that makes our code look like HTML in JavaScript, undergoes a transformation before the browser executes it. Tools like Babel work behind the scenes, turning our app.js into a superhero ready to battle in the browser arena.

So, whether you're rocking app.js or app.jsx, fear not! It's all about conventions and personal flair. The world of React welcomes both with open arms.

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