The standard markup language used to create web pages and user interfaces for mobile and web applications.

A style sheet language used for describing the presentation of a document written in a markup language.

A high-level, dynamic, untyped, and interpreted programming language. Alongside HTML and CSS, it is one of the three essential technologies of World Wide Web

A server-side scripting language designed for web development but also used as a general-purpose programming language.

In software development, Node.js is an open-source, cross-platform runtime environment for developing server-side Web applications.

Is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS)