Constants and Variables

Constants and Variables in Swift



Constants (let):


 Declared with let.

 Immutable; value cannot change once initialised.

 Ideal for values that remain constant throughout the program.

 Promotes safety and clarity in code.


Variables (var):


 Declared with var.

 Mutable; value can be changed after initialisation.

 Suitable for values that may vary during program execution.

 Provides flexibility in managing and updating data.


Key Differences:


 Constants ensure immutability, enhancing code safety.

 Variables allow for value changes, offering flexibility in data management.



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