Check if a NSMutableDictionary is empty?

How can I tell if a开发者_如何学编程n NSMutableDictionary is empty in Objective-C?

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Very simple, use the -count method inherited from NSDictionary:

NSMutableDictionary *dict = ...

BOOL isEmpty = ([dict count] == 0);

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I have also faced this problem. Below code is working for me on iOS 7.0.

[dict isKindOfClass:[NSNull class]];