شرح Null Safety في Dart للمبتدئين | من سلسلة احتراف تطوير التطبيقات

In this lesson, we'll learn one of the most important concepts in Dart: Null Safety. This helps us write more stable and error-free applications. In this video, we'll learn: ✅ What is null? ✅ Why did Dart add Null Safety? ✅ The difference between a String and a String? ✅ How to handle null values ​​safely ✅ An explanation of operators: ? ! ?? ?. ✅ Practical examples and real-world applications from Flutter projects If you want to master Flutter, understanding Null Safety is an essential first step.