JavaScript's event loop is a fundamental mechanism that allows the language to execute code asynchronously. It's responsible for managing the execution of tasks, handling events, and ensuring a smooth user experience.

Understanding the Event Loop
To grasp the concept, let's break down the components involved:

Call Stack: A stack data structure where function calls are pushed and popped as they execute.
Message Queue: A queue of messages (tasks) waiting to be processed.
Event Loop: Continuously checks the call stack and message queue.
How the Event Loop Works
Initial Execution: When a JavaScript script starts, the main thread begins executing the code synchronously, pushing functions onto the call stack as they're called.
Asynchronous Operations: If an asynchronous operation (like a network request or a timer) is encountered, it's offloaded to the browser's background thread.
Callback Queue: Once the asynchronous operation completes, a callback function is added to the message queue.
Event Loop's Role:
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