In this chapter of the free Dart course, you will explore isolates, one of the most powerful concepts in Dart for handling concurrency and improving application performance.

By default, Dart runs on a single thread using an event loop. This means heavy or long-running tasks can block the main thread and make your application slow or unresponsive. Isolates solve this problem by allowing you to run code in separate memory spaces, fully independent from each other.

You will learn how isolates work and why they are different from traditional threads. Unlike threads, isolates do not share memory, which makes them safer and avoids common issues like race conditions. Instead, they communicate by sending messages between each other.

In this chapter, you will also understand how to create isolates using Dart’s Isolate class and how to pass data between them efficiently. This is especially useful for tasks like heavy computations, file processing, or network operations in the background.

By the end of this chapter, you will have a clear understanding of how to improve the performance of your Dart applications using isolates. This knowledge is essential for building responsive and scalable apps, especially when working with Flutter or backend systems.