Question d’entretien chez Synechron

What is an event loop?

Réponse à la question d'entretien

Utilisateur anonyme

8 mars 2024

The event loop is like a traffic cop managing the flow of events in JavaScript. It continuously checks the call stack and task queue, moving tasks from the queue to the stack when the stack is empty. This allows JavaScript to handle asynchronous tasks efficiently without blocking execution. Web APIs, Timers: These are asynchronous operations like fetching data from a server or setting a timeout. Event Listeners: Functions waiting for an event to occur, like a click or keypress. Task Queue: Asynchronous tasks and event callbacks are placed here once they're complete. Call Stack: The stack where function calls are queued for execution.