Understanding Future and Stream in Dart

Do you know the difference between Future and Stream in Dart? Both handle asynchronous operations, but have different purposes: Future: returns a single value in the future. Stream: returns a sequence of values ​​over time. In this article, I show practical examples of each and explain when to use one or the other in your Flutter app or Dart project.

May 10, 2025 - 04:37
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Understanding Future and Stream in Dart

Do you know the difference between Future and Stream in Dart?

Both handle asynchronous operations, but have different purposes:

  • Future: returns a single value in the future.

  • Stream: returns a sequence of values ​​over time.

In this article, I show practical examples of each and explain when to use one or the other in your Flutter app or Dart project.