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Flutter & Dart · Concept

Null safety

The Dart Null class represents the single object written as null. Dart provides operators such as ??, ??=, ?., ...?, and ! for working with null values.

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Syntax

class Null

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  • Object
  • noSuchMethod
  • toString
  • hashCode
  • runtimeType
  • operator ==

Source: Null class - dart:core library - Dart API. Checked 2026-11-03.