Use existing string as valueForKey value

Use existing string as valueForKey value

By : Ali Ezzat
Date : November 29 2020, 09:01 AM
To fix this issue I am trying to use a string ("levelNumberString") as a valueForKey in an NSDictionary. When I use a string like @"1", it all works perfectly, but when I decide to swap out that kind of string for levelNumberString, it gives me a SIGABRT error. The integer levelInt is an integer that decides what level the app is at. When the view is loaded, it is worth 1, and its value is taken up by the "levelNumberString" string. , The problem is over here @"i%" it should be @"%i"
code :
NSString *levelNumberString = [NSString stringWithFormat:@"%i", levelInt];
NSDictionary *packDict = [NSDictionary dictionaryWithDictionary:[rootDict valueForKey:levelNumberString]];

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Retrieve `valueForKey` as string

Retrieve `valueForKey` as string

By : Mizanur Rahman Shami
Date : March 29 2020, 07:55 AM
Any of those help valueForKey when sent to an array returns an array of all the values with that key in the array -- it may only be one value, but it will be in an array. If you log [currentPic class], I'm guessing that it will be an array, so you need to send objectAtIndex to it to get a single string
valueForKey returning nil

valueForKey returning nil

By : user6453344
Date : March 29 2020, 07:55 AM
will help you NSArray and NSDictionary cannot contain nil values. NSNULL was created specifically as a placeholder for nil. It can be put into collection classes, and only takes up space.
NSNull defines a singleton object, which means that there's only ever a single instance of NSNull but it can be used in as many places as you wish.
code :
if (current != nil || [current valueForKey:@"name"] != [NSNull null] )
      NSLog(@"here %@", [current valueForKey:@"name"]);
here John
here Sam
here Billy
valueForKey does not return the right value

valueForKey does not return the right value

By : Ritva
Date : March 29 2020, 07:55 AM
around this issue [stvc.selectedItems valueForKey:@"Order"] returns a (pointer to an) NSNumber object. If you just cast that to a boolean scalar, the result will always be "true", because the pointer is not NULL.
You have to use
code :
... ascending:[[stvc.selectedItems valueForKey:@"Order"] boolValue] ...
stvc.selectedItems[@"Order"] = @NO;

NSSortDescriptor *mySortDesc = [[NSSortDescriptor alloc] initWithKey:@"firstName"
        ascending:[stvc.selectedItems[@"Order"] boolValue]];
mod_rewrite existing directories to index.php adds query string but works right for non-existing

mod_rewrite existing directories to index.php adds query string but works right for non-existing

By : Amar
Date : March 29 2020, 07:55 AM
I wish this help you Okay, I believe I have figured out the issue. Because the URL before rewriting was resolving to a directory and because I was omitting the trailing /, apache was automatically sending a 301 Moved Permanently redirect with the trailing / added on. I guess due to the order apache does things, the redirect was also picking up the rewrite and instead of 301 redirecting from http:///img to /img/ it was 301 redirecting to /img/?_url=img.
I finally fixed this (I think), by adding in DirectorySlash off to my vhost.
How to get the valueForKey?

How to get the valueForKey?

By : youssef salah
Date : March 29 2020, 07:55 AM
help you fix your problem I am getting the following response from the json after parsing like this: Please click the image , Your Array is actually not an Array but Dictionary.
code :
print("JSON object  s: \(cashPointOperatingDays[0])")
        guard let firstDict = cashPointOperatingDays[0] as? [String: String] else {
        print("First Dictionary: \(firstDict["operatingDay"])") //error showing line
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