When would you use a struct versus a class?

Sources & Resources

Main Source: 🔗 Ace the iOS Interview

Additional Sources:

Further Reading:

TL/DR

Typically, you’ll want to use astructif any of thefollowing conditions apply:

• Use astructwhen encapsulating simple data types
• When you need thread safety asstructsare passed-by-value
• You want pass-by-value semantics
• When the properties defined inside the entity are mostly value types
• You don’t need inheritance
• You don’t need mutability
• When you want automatic memberwise initializers

Apple’s recommendation is to start with astructandtransition to aclassonly if you need inheritance or pass-by-reference semantics. However, if your entity is storing a lot of data then it may make sense to use aclassso you’re only incurringthe memory cost once.