Question

NSString *s = @"0800 444 333";

As you can see, this string has 2 white-spaces in the middle.
My questions is, how do I get rid of them so the string can become:

s = @"0800444333"

Answer 1

This can be accomplished with simple string formatting. Here’s an example:

NSString *s = @"0800 444 333";
NSString *secondString = [s stringByReplacingOccurrencesOfString:@" " withString:@""];

See the NSString Class Reference for more details and options.

To further simplify, this line can also be written like this:

NSString *s = [@"0800 444 333" stringByReplacingOccurrencesOfString:@" " withString:@""];