Ruby Forum Ruby-dev > @a?, @a! interpolation

@a?, @a! interpolation

Posted by Tanaka Akira (Guest)

on 04.05.2008 12:28

$B0J2<$N$h$&$K!"(B@a?, @a! $B$,%$%s%9%?%s%9JQ?t$H$5$l$k$N$OJQ$G$O(B
$B$J$$$G$7$g$&$+!#(B

% ./ruby -ve '@a = "x"; p "[#@a?][#@a!]"'
ruby 1.9.0 (2008-05-02 revision 16286) [i686-linux]
-e:1: warning: instance variable @a? not initialized
-e:1: warning: instance variable @a! not initialized
"[][]"

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