Javascript

Javascript is the most popular language in the world, so you should at least have some knowledge of how it works and how it functions.

React

Extensions of TypeScript

.tsx and .ts files are both used in TypeScript projects, but they have a key difference. .tsx files are designed to work seamlessly with JSX – a syntax extension that lets you write HTML-like structures within your React components. In contrast, .ts files are for standard TypeScript code and don't natively support JSX. If you're building React components, you'll typically use .tsx files; for other TypeScript code like utility functions or data models, you'll use .ts files. The same applies to .jsx files.

Links

• Lex Fridman Interview with Creator of Javascript
• Javascript in 100 seconds

Thoughts

• Javascript was created in 10 days!!!