Brian Candler
5/31/2007 4:10:00 PM
On Fri, Jun 01, 2007 at 01:03:26AM +0900, Cory wrote:
> folks - can't quite figure this one out...
>
> foo = 5
> bar = 10
>
>
> basically - when i go to print out the numbers - i want to format 'foo'
> with a leding zero so that it reads '05' and is aesthetically pleasing
> when compared to a double-digit number - such as bar: '10'.
>
>
> essentially looking to get:
>
> 05
> 10
> 25
> 03
foo = 5
puts "%02d" % foo
--------------------------------------------------------------- String#%
str % arg => new_str
------------------------------------------------------------------------
Format---Uses _str_ as a format specification, and returns the
result of applying it to _arg_. If the format specification
contains more than one substitution, then _arg_ must be an +Array+
containing the values to be substituted. See +Kernel::sprintf+ for
details of the format string.
"%05d" % 123 #=> "00123"
"%-5s: %08x" % [ "ID", self.id ] #=> "ID : 200e14d6"