Non-Nullable Types

# Mastering Dart: Understanding Non-Nullable Types for Robust Code Tired of unexpected `null` errors crashing your Dart or Flutter applications? Dart's null safety feature, and particularly **non-nullable types**, are your shield against these frustrating issues. This guide will equip you with the knowledge to write cleaner, more reliable Dart code by leveraging the power of non-nullable types. Learn how to define variables that *guarantee* a value, preventing common null-related bugs and