how to get extension file NSString

Question

I want get extension (format file from NSString) but I dont know about it please tell me syntax for getting format file from NSString.

NSString *name = @"Xcode-tutorial.pdf"

I want get .pdf format and store in one variable

Answer 1

Use NSStrings pathExtension method:

NSString *fileExtension = [name pathExtension];

Answer 2

Did you look in the documentation? There is a method that does just that:

NSString *ext = [name pathExtension];
NSLog(@"%@", ext);

Answer 3

use this my dear:

NSString *a = [name pathExtension];