How can I pad an integer on the left with zeros?

Question

I have the following variable:

NSNumber *consumption = [dict objectForKey:@\"con\"];

Which returns 42. How can I pad this number to 10 dig

Answer 1

You can do pretty much any number formatting you would ever want with NSNumberFormatter. In this case I think you would want to use the setFormatWidth: and setPaddingCharacter: functions.