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Primary constructors and private named parameters

Flutter — Sep 17, 2026 — talk

Why watch

This video explains two new Dart 3.12 language features: primary constructors, which eliminate the need to repeat field names and types in class bodies, and private named parameters (private initializing formals), which let parameters starting with underscores be declared directly in the constructor. Both features reduce constructor boilerplate for Dart and Flutter developers looking to write more concise code.