Using stdout , stdin , and stderr in Node.js

Standard streams such as stdin, stdout, and stderr facilitate input and output communication between programs and their environments in Node.js, similar to conveyor belts connecting machines in a factory. These streams are initialized with unique file descriptors when a Node.js process starts, allowing for efficient data flow management during program execution. stdin serves as the input source, stdout as the output destination, and stderr for error messages. Node.js enables developers to interact with these streams to create applications that, for example, receive and process user input via the terminal or manage logging by differentiating between successful outputs and error messages. By employing modules like readline, developers can create interactive scripts, and tools such as LogRocket can enhance application monitoring by recording user sessions and detecting performance issues. This composability allows developers to channel simple programs into more complex workflows, facilitating efficient data management and error handling in software applications.