irb(main):004:0> sprintf("%2s", "lalaa")
=> "lalaa"
irb(main):005:0> sprintf("%2i", 1212)
=> "1212"
ruby 1.8.3 (2005-09-21) [i686-linux]
What s my mistake?
Reading comprehension? =)
sprintf("%2.2s","lalaa")
==>"la"
You can't do the equivalent for a number (as the precision setting for a
number specifies decimal places).
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irb(main):004:0> sprintf("%2s", "lalaa")
=> "lalaa"
irb(main):005:0> sprintf("%2i", 1212)
=> "1212"
What s my mistake?
Daniel Sheppard wrote:
sprintf("%2.2s","lalaa")
==>"la"
u can't do the equivalent for a number (as the precision setting for a
number specifies decimal places).
You _can_ do the equivalent for a number two ways that I can think of:
sprintf("%i", 1212 % 10**2) #=> "12" # modular arithmetic to truncate high
digits
sprintf("%.2s", 1212) #=> "12" # cast integer to string
Also, I usually like using String#% instead of sprintf, just in case you're
not familiar with it:
"%.2s" % 1212 #=> "12"
Cheers,
Dave
i wasnt familiar with it, quite impressive!
So long
···
* Dave Burt (dave@burt.id.au) wrote:
Also, I usually like using String#% instead of sprintf, just in case you're
not familiar with it:
"%.2s" % 1212 #=> "12"
--
Michael 'entropie' Trommer; http://ackro.org
ruby -e "0.upto((a='njduspAhnbjm/dpn').size-1){|x| a-=1}; p 'mailto:'+a"