Kotlin, JAVA, React, Angular and Node.js
Kotlin/JS provides the ability to transpile your Kotlin code, the Kotlin standard library, and any compatible dependencies to JavaScript.
Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
React(also known as React.js or ReactJS) is a free and open-source front-end JavaScript library for building user interfaces or UI components. It is maintained by Facebook and a community of individual developers and companies.
Angular (commonly referred to as “Angular 2+” or “Angular v2 and above”) is a TypeScript-based free and open-source web application framework led by the Angular Team at Google and by a community of individuals and corporations.
Node.js is an open-source, cross-platform, back-end JavaScript runtime environment that runs on the V8 engine and executes JavaScript code outside a web browser.