Eseményhurokban

Eseményhurokban is a Hungarian term that translates to "in the event loop" or "event loop" in English. It refers to a fundamental programming construct, particularly prevalent in asynchronous and event-driven programming paradigms. The event loop is a continuously running process that waits for and dispatches events or messages in a program.

In essence, the event loop monitors a queue of events. When an event occurs, such as a user interaction, a network response, or a timer expiring, it is added to this queue. The event loop then takes the next event from the queue and processes it by executing the associated callback function or handler. This process repeats indefinitely, allowing programs to remain responsive to external stimuli without blocking the main execution thread.

This model is crucial for applications that need to handle multiple operations concurrently, such as web servers, graphical user interfaces, and real-time applications. By not waiting for long-running operations to complete, the event loop ensures that the application can continue to respond to other events, leading to a smoother and more efficient user experience. Popular JavaScript environments like Node.js and web browsers heavily rely on the event loop mechanism for their asynchronous operations.