Understanding asynchronous programming for scalability
Asynchronous programming might sound like a complex term straight out of a computer science textbook, but understanding it is crucial for building scalable applications, particularly in a JavaScript-based framework such as NestJS. As the famous saying goes, “Scalability is to performance what agile is to development.” Let’s demystify this concept and discuss why embracing asynchronous programming can be a game-changer for your NestJS applications.
What is asynchronous programming?
In the simplest terms, asynchronous programming allows multiple operations to execute concurrently but not necessarily at the same instant. In a synchronous model, operations are performed one after the other, blocking subsequent actions until the current one is completed. Asynchronous programming, on the other hand, allows operations such as I/O-bound tasks to be offloaded, freeing up the main thread to handle other tasks.
...
