How to split string into substrings on iOS?

Question

I received an NSString from the server. Now I want to split it into the substring which I need. How to split the string?

For example:

substring1:read from the second character to 5th character

substring2:read 10 characters from the 6th character.

codelogic_43427 · Answer

You can also split a string by a substring, using NString's componentsSeparatedByString method.

Example from documentation:

NSString *list = @"Norman, Stanley, Fletcher";
NSArray *listItems = [list componentsSeparatedByString:@", "];

Joel_Levin_55743 · Answer

NSString has a few methods for this:

[myString substringToIndex:index];
[myString substringFromIndex:index];
[myString substringWithRange:range];

Check the documentation for NSString for more information.