nsnull
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Difference between nil, NIL and, null in Objective-C
I want to know the difference between nil, NIL and null. I\'ve googled around and found this: nil -> null pointer to Objective-C object[详细]
2023-03-03 21:52 分类：问答How to detect if NSString is null?
I have a piece of code that detects if a NSString is NULL, nil, etc. However, it crashes. Here is my code:[详细]
2023-02-25 18:12 分类：问答Are NULL and nil equivalent?
Actually my question here is: are null and nil equivalent or not? I have an example but I am confused when they are equal when they are not.[详细]
2022-12-23 00:12 分类：问答When should I use nil and NULL in Objective-C?
This is sample code: NSDictionary *myDictionary = [NSDictionary dictionary]; NSNumber *myNumber = [myDictionary valueForKey: @\"MyNumber\"];[详细]
2022-12-08 17:17 分类：问答
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