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Mis vahe on modifikaatoritel final ja const programmeerimiskeeles?

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Vastus AI-lt

In the Dart language (used in Flutter), the modifiers final and const are used to declare immutable values, but they have different characteristics:

  • final means that the variable can be initialized only once, but the initialization can occur at runtime. For example, the value can be obtained during program execution.

  • const means that the variable's value is a compile-time constant, meaning it is known and fixed before the program starts.

Example:

final DateTime now = DateTime.now(); // can be assigned only once, but the value is determined at runtime
const int maxCount = 100; // the value is known at compile time and will not change