Difference between value type and reference type in Swift

value type in Swift

In Swift, A value type instance is an independent instance and holds its data in its own memory allocation.

reference type in Swift

In Swift, reference type instances share a single copy of their data, so that every new instance will point to the same address in memory.

value type vs reference type in Swift

Parameters	value type	reference type
Type	struct, enum, and tuple	class, functions, and closures
Assignment/Passing	Copies data, creates a new instance	Shares the same instance
Comparison	Use == for value equality	Use === for identity equality
Mutation	Changes don't affect originals	Changes affect all references
Use Cases	Simple, independent data	Shared, mutable state, instance identity