Created
March 1, 2015 12:08
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NSDictionary (Changes)
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| @implementation NSDictionary (Changes) | |
| - (NSDictionary *)changedKeysIn:(NSDictionary*)d | |
| { | |
| NSMutableDictionary *changedKeys = @{}.mutableCopy; | |
| for(id k in self) | |
| { | |
| id val = [d objectForKey:k]; | |
| if(![[self objectForKey:k] isEqual:val]) | |
| { | |
| [changedKeys setObject:val?:[NSNull null] forKey:k]; | |
| } | |
| } | |
| return [changedKeys copy]; | |
| } | |
| @end |
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