What else have you written in your professional experience besides TypeScript and JavaScript?

In addition to TypeScript and JavaScript, other technologies often encountered in commercial experience that complement frontend development include:

• HTML and CSS — basic technologies for markup and styling web pages.
• Sass, Less — CSS preprocessors for more convenient and structured styling.
• React, Vue, Angular — popular frameworks and libraries for building interfaces.
• GraphQL — a query language for APIs, often used together with the frontend.
• Webpack, Rollup, Vite — build and optimization tools for frontend code.
• Node.js — for server-side development or build tools.
• REST API — interaction with backend via HTTP.

Depending on the project, you can also use:

• D3.js or other data visualization libraries.
• Jest, Cypress — testing tools.
• Docker — for containerization and simplifying deployment.

Example: in one project, I wrote server-side rendering with Node.js using Express, and also styled with Sass and configured the build with Webpack.