Taming Event Loops: Effortless Event Handling in Node.js

Bolster Your Backend Chops with Time-tested Tips and Live Code Samples

Photo by Priscilla Du Preez 🇨🇦 on Unsplash

Node.js thrives on non-blocking I/O powered by event loops fielding requests, dispatching events, and juggling callbacks seamlessly behind the scenes. However, harnessing this potency demands diligent attention cultivating healthy habits maximizing efficiencies. Join us as we demystify event handling nuances in Node.js land.

Async Patterns

Node.js supports myriad asynchronous patterns catering varying tastes:

1. Callbacks: Classic pattern passing standalone functions invoked upon completion.
2. Promises: Higher-order constructs wrapping asynchronous operations elegantly.
3. Async/Await: Syntax sugar transforming Promises into linear flows visually appealing.

Comparisons aside, understanding each mechanism yields profound rewards smoothening event handling journeys considerably.

Case Study: Reading Files

Suppose we want to read files linearly listing directory contents atomically. How would one proceed? Brace yourself for some live code!