An event loop is a programming construct that waits for and dispatches events or messages in a program, allowing non-blocking execution. It is central to asynchronous programming, enabling efficient execution of tasks by handling events and callbacks without the need for multithreading.

Event Loop

event loop

programming construct

dispatches events

non-blocking execution

Asynchronous programming is a paradigm that allows tasks to run independently of the main program flow, enabling more efficient execution by not blocking the program while waiting for long-running operations to complete. It is particularly useful in environments where I/O operations are frequent, such as web servers, providing better responsiveness and scalability.

asynchronous programming

efficient execution

handling events

Callbacks are functions passed as arguments to other functions, allowing for deferred execution once a certain operation completes. They are fundamental in asynchronous programming, enabling non-blocking operations and improving efficiency in environments like JavaScript and Node.js.

callbacks

Multithreading is a programming technique that allows multiple threads to run concurrently within a single process, enabling more efficient use of resources and improved application performance. It is particularly useful for tasks that can be executed in parallel, such as handling multiple user requests or performing background operations alongside a main task.

multithreading

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