if ($food) {
print "$food\n";
eat (substr($food,0,length($food)-1));
}
Yes recursion can be instructive, but be careful not to mismatch
a conditional test with the logical intent of the test. Your test of
true or false doesn't mesh with your logical intent of recursing
based on the length of the string. Try eating the string "012345" and
your recursion ends too early because a string can have a non-zero
length and still be false.
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