unnecessary_constructor_name

Unnecessary '.new' constructor name.

The analyzer produces this diagnostic when a reference to an unnamed constructor uses .new. The only place where .new is required is in a constructor tear-off.

The following code produces this diagnostic because .new is being used to refer to the unnamed constructor where it isn't required:

var o = Object.new();

Remove the unnecessary .new:

var o = Object();

Unless stated otherwise, the documentation on this site reflects Dart 3.7.3. Page last updated on 2025-05-08. View source or report an issue.