What does the event queue do?

The event queue is responsible for sending new functions to the stack for processing . It follows the queue data structure to maintain the correct sequence in which all operations should be sent for execution. Whenever an async function is called, it is sent to a browser API. These are APIs built into the browser.

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Why is single threaded better?

A single application can have different threads within the same address space using resource sharing. It is more economical to use threads as they share the process resources . … In a multiprocessor architecture, each thread can run on a different processor in parallel using multithreading.

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What is single threaded used for?

Using single-threaded apartments (the apartment model process) offers a message-based paradigm for dealing with multiple objects running concurrently . It enables you to write more efficient code by allowing a thread, while it waits for some time-consuming operation to complete, to allow another thread to be executed.

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