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Best way to convert NSArray from NSString to NSArray from NSNumber

Is there a better way to convert NSArray

from NSString

to NSArray

of NSNumber

than the following code:

-(NSArray*) convertStringArrayToNumberArray:(NSArray *)strings {
    NSMutableArray *numbers = [[NSMutableArray alloc] initWithCapacity:strings.count];
    for (NSString *string in strings) {
        [numbers addObject:[NSNumber numberWithInteger:[string integerValue]]];
    }
    return numbers;
}
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1 answer 


-(NSArray *)convertStringArrayToNumberArray:(NSArray *)strings {
    return [strings valueForKeyPath:@"self.integerValue"];
}

I am testing

NSArray * array = @[@"1",@"2",@"3"];
NSArray *num = [self convertStringArrayToNumberArray:array];


And the result

vUx1F.png

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