Coroutines
Coroutines are a programming concept for writing asynchronous, non-blocking code in a sequential, readable style. They allow functions to suspend execution and yield control back to the caller, enabling cooperative multitasking without the overhead of threads. This is widely used in concurrent programming to handle I/O-bound tasks efficiently.
Developers should learn coroutines to manage asynchronous operations in applications like web servers, real-time systems, or data processing pipelines, where blocking calls would degrade performance. They are particularly valuable in languages like Python, Kotlin, or Go for simplifying concurrency, avoiding callback hell, and improving code maintainability compared to traditional threading or event loops.