weak var
Generated on 8/13/2024
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In Swift, a weak reference is used to avoid creating strong reference cycles, which can lead to memory leaks. Weak references are always optional types, and they become nil after their destinations are deinitialized. This is particularly useful when you want to reference an object without increasing its reference count, allowing it to be deallocated when no strong references remain.
For more details on weak references and their usage, you can refer to the session Analyze heap memory (26:57) from WWDC 2024, which discusses the differences between weak and unowned references and when to use them.
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