@marpme

Developer

Active Stack Overflow contributor with expertise in React.js, JavaScript, Node.js, and Express. Reputation: 2,435. Top tags include reactjs (133 score).

https://stackoverflow.com/users/4479618/marpme

Programming React .js vs .jsx: Differences, Usage & Best Practices

Understand the key differences between .js and .jsx files in React. JSX works in both, but learn when to prefer .jsx for components, .js for utils, and how ESLint, Emmet, and bundlers enhance workflow with proper extensions.

#eslint
#javascript
#jsx
#react
#vite

6 answers• 1 view

02/23/2026, 05:40 PM