Exploring Node.js Event Loop

 Exploring Node.js Event Loop

Asynchrony is hard for any programming language. Asynchronous in Node.js is unpredictable and difficult to trace when there are some bugs. JavaScript is single-threaded. Utilizing multiple threads is most challenging because of its inherent...

Asynchrony is hard for any programming language. Asynchronous in Node.js is unpredictable and difficult to trace when there are some bugs. JavaScript is single-threaded. Utilizing multiple threads is most challenging because of its inherent complexity. Both Programmer and OS give a lot of effort to deliver a solution, But nodejs event loop is crazy.

What is actually event Loops?

It is a single-threaded asynchronous concurrent loop. A single thread can do one thing at a time. In the event loop, multiple requests can get queued at the same time and that makes it concurrent. Loop doesn’t wait for everything from one request for complete but callback comes without blocking anything.

It is a semi-finite type loop where if the queue is empty, the loop will automatically exit. Node.js uses libuv in the operating systems for callbacks for incoming connections.

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