How to convert NSString to NSArray with characters one by one in Objective-C -

this question has answer here:

• is there simple way split nsstring array of characters? 3 answers

i'd convert nsstring(ex. @"hello") nsarray(ex. [@"h", @"e", @"l", @"l", @"o", nil]).

first, tried use componentsseparatedbystring. needs indicate separator, not. how can that?

here code:

@interface nsstring (converttoarray) -(nsarray *)converttoarray; @end  @implementation nsstring (converttoarray)  -(nsarray *)converttoarray {     nsmutablearray *arr = [[nsmutablearray alloc]init];     (int i=0; < self.length; i++) {         nsstring *tmp_str = [self substringwithrange:nsmakerange(i, 1)];         [arr addobject:[tmp_str stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding]];     }     return arr; } @end 

:

- (void)foo {     nsstring *exstring = @"hello";     nsarray *arr = [exstring converttoarray];     (nsstring *str  in arr) {         nslog(@"%@\n",str);     } }