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Comment on reloadItems behavior on NSDiffableDataSourceSnapshot
Two items having the same hash value (a hash collision) does not guarantee they are the same item. Hash functions map data to a fixed-size value, so different items can produce the same hash. However, good hash functions minimize collisions, and in some contexts (like cryptographic hashes), collisions are extremely rare. Equality should be verified by comparing the items directly, not just their hash values.
Topic: UI Frameworks SubTopic: UIKit Tags:
Jun ’25
Comment on reloadItems behavior on NSDiffableDataSourceSnapshot
Two items having the same hash value (a hash collision) does not guarantee they are the same item. Hash functions map data to a fixed-size value, so different items can produce the same hash. However, good hash functions minimize collisions, and in some contexts (like cryptographic hashes), collisions are extremely rare. Equality should be verified by comparing the items directly, not just their hash values.
Topic: UI Frameworks SubTopic: UIKit Tags:
Jun ’25
Comment on reloadItems behavior on NSDiffableDataSourceSnapshot
Two items having the same hash value (a hash collision) does not guarantee they are the same item. Hash functions map data to a fixed-size value, so different items can produce the same hash. However, good hash functions minimize collisions, and in some contexts (like cryptographic hashes), collisions are extremely rare. Equality should be verified by comparing the items directly, not just their hash values
Topic: UI Frameworks SubTopic: UIKit Tags:
Jun ’25
Comment on reloadItems behavior on NSDiffableDataSourceSnapshot
Two items having the same hash value (a hash collision) does not guarantee they are the same item. Hash functions map data to a fixed-size value, so different items can produce the same hash. However, good hash functions minimize collisions, and in some contexts (like cryptographic hashes), collisions are extremely rare. Equality should be verified by comparing the items directly, not just their hash values.
Topic: UI Frameworks SubTopic: UIKit Tags:
Jun ’25