Split an NSString into an array in Objective-C

Question

How can I split the string @"Hello" to either:

• a C array of 'H', 'e', 'l', 'l', 'o'

or:

• an Objective-C array of @[@"H", @"e", @"l", @"l", @"o"]

Answer 1

If you're satisfied with a C array of chars, try:

const char *array = [@"Hello" UTF8String];

If you need an NSArray, try:

NSMutableArray *array = [NSMutableArray array];
NSString *str = @"Hello";
for (int i = 0; i < [str length]; i++) {
    NSString *ch = [str substringWithRange:NSMakeRange(i, 1)];
    [array addObject:ch];
}

And array will contain each character as an element of it.