Under the Hood of Asynchronous Execution
Explore how Node.js manages asynchronous execution by understanding the call stack, libuv, callback queues, and the event loop. This lesson clarifies how tasks like setTimeout operate without blocking the main thread, enabling efficient, non-blocking code in Node.js applications.
We'll cover the following...
In previous lessons, we introduced asynchronous programming. Now, we’ll go under the hood to see how Node.js handles asynchronous tasks with the event loop, libuv, and the callback queue. Understanding these components helps us write efficient, non-blocking code.
Core components of asynchronous execution
When Node.js runs a file with both synchronous and asynchronous code, it coordinates execution using the following four components.:
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Call stack: The primary space where JavaScript code runs, handling synchronous tasks—such as variable ...