Dart isolate group

Complete Program

Using isolates, your Dart code can perform multiple independent tasks at once, using additional processor cores if they’re available . Isolates are like threads or processes, but each isolate has its own memory and a single thread running an event loop.

An isolate is a thread that has an event loop that continuously processes events in its own memory space .27 Eyl 2021

Because Dart language is a single threaded language. However, Flutter uses several threads to do its work.