Technologies Covered

This is the de-facto language for web development. JavaScript is a multi-paradigm language. Most popular Frameworks include React, Vue, Angular and Svelte. On the backend, the Node.js JavaScript runtime alongside the Express framework are the most popular.
Python is popular and powerful general purpose programming. From every stack web development, machine learning, data science, python growth is constant.
The new Android king is a growing language in the JVM ecosystem. Kotlin was developed by jetbrains and meant to be interoperable with Java. N nowadays, the support for backend development in spring framework is rising as well.