Re: best way to test for NSString / NSCFString type of object?
Re: best way to test for NSString / NSCFString type of object?
- Subject: Re: best way to test for NSString / NSCFString type of object?
- From: Daryn <email@hidden>
- Date: Thu, 2 Oct 2003 19:49:25 -0500
NSString is merely the abstract class for a class cluster. What you
really want to do is test if the class inherits from NSString:
if ([[array lastObject] isKindOfClass:[NSString class]]) { ... }
On Thursday, October 2, 2003, at 07:32 PM, Ben Dougall wrote:
i've got a method that sometimes returns an NSString other times other
types of object. whatever's returned i put straight into an
NSMutableArray. i want to keep adding to the array until there's an
NSString, so i put this line in to test for that just after adding to
the array:
if( [[[array lastObject] className] isEqual:@"NSString"] ) {
...
it never successfully detected a string. i printed out the object
types to see what was going on and the NSStrings had unexpectedly
turned into the class type NSCFString. changing the test to that then
worked fine, but is that safe? will it always be NSCFString rather
than NSString? what's the best way to make that test? and how come
it's changed?
thanks, ben
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Daryn
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