NSString Library ...任何人都知道NSString的助手庫？

Question

從紅寶石背景來了，我希望的NSString有一些簡便的方法如下所示：

[@"John" contains:@"ohn"] => BOOL 
[@"1,2,3,4," split:@","] => NSArray 

任何人都知道這樣一個NSString助手庫？

Answer 1

爲NSString類的一些 「快速問答」，相當方便的參考保持周圍：http://borkware.com/quickies/one?topic=NSString

Answer 2

試試這個：

BOOL contains = ([@"John" rangeOfString:@"ohn"].length == 0 ? NO : YES); 
NSArray *array = [@"1,2,3,4" componentsSeparatedByString:@","]; 

Answer 3

http://developer.apple.com/mac/library/documentation/cocoa/reference/foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/occ/instm/NSString/componentsSeparatedByString：

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

http://developer.apple.com/mac/library/documentation/cocoa/Conceptual/Strings/Articles/SearchingStrings.html#//apple_ref/doc/uid/20000149-CJBBGBAI

NSString *searchString = @"age"; 

NSString *beginsTest = @"Agencies"; 
NSRange prefixRange = [beginsTest rangeOfString:searchString 
    options:(NSAnchoredSearch | NSCaseInsensitiveSearch)]; 

// prefixRange = {0, 3}