Question

is there a method to verify if a NSString haven’t characters?
example of string without characters can be:

@”” or @” ” or @”\n ” or @”\n\n “, I want cosider these strings as empty strings and print a nslog that say me that these are emty, what kind of control I should use?

Answer 1

You can use this test:

if ([[myString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] length] == 0) {
    // The string is empty
}