To allow an instance of your Dart class to be called like a function, implement the call() method.

The call() method allows an instance of any class that defines it to emulate a function. This method supports the same functionality as normal functions such as parameters and return types.

In the following example, the WannabeFunction class defines a call() function that takes three strings and concatenates them, separating each with a space, and appending an exclamation. Click Run to execute the code.

Unless stated otherwise, the documentation on this site reflects Dart 3.7.2. Page last updated on 2024-05-30. View source or report an issue.