Question

NSString *string = @"HELLO";

For some reason, XCode won’t auto-complete methods like remove characters or append etc… If that’s the case, how can I, say, remove certain characters from my string? Say I want to remove all the L’s.

Answer 1

NSString doesn’t respond to those methods. NSMutableString does, but you’ve declared an immutable string variable and assigned to it a string literal. Since an Objective-C @"string literal" is always immutable (an instance of NSString but not NSMutableString), there’s no way those messages can be sent to the object you’re using.

If you want a mutable string, try:

NSMutableString *mutableString = [[@"HELLO" mutableCopy] autorelease];