Define various annotations that are available in Objective C?

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Define various annotations that are available in Objective C?
Question Posted on 13 Mar 2021

Home >> iOS >> iOS Questions >> Define various annotations that are available in Objective C?

Define various annotations that are available in Objective C?
Below are the four annotations available in objective C
(1)Nullable:-Here value can be nil
(2)Null unspecified:-This is the default and bridges to a Swift implicitly-unwrapped optional.
(3)Non-null:-Here value can not be nill and will bridges to regular reference.
(4)null_resettable:-Here value can not ne nil when we read but we can set it to nil to reset it.