What programming language is primarily used with NodeJS?

Node.js is primarily built on JavaScript, which is a core technology used for server-side scripting. JavaScript allows developers to write server-side applications using the same language they use for client-side scripting in web browsers. This enables full-stack JavaScript development, allowing for seamless transitions between client and server code.

Node.js utilizes an event-driven, non-blocking I/O model that makes it lightweight and efficient, particularly suitable for data-intensive real-time applications. The extensive use of JavaScript in Node.js also benefits from the vast ecosystem of libraries available through npm (Node Package Manager), further extending its capabilities for web application development.

In contrast, while languages like Python, Java, and C++ are powerful and widely used in different contexts, they are not the primary languages associated with Node.js. Python is often used for web development with frameworks like Django or Flask, Java is commonly used in enterprise environments with technologies like Spring, and C++ is typically utilized for systems programming or applications requiring high-performance computing.