First, you should use > instead of ge when dealing with numerical values

Well, ">=" would be the numerical equivalent to the string comparison operator "ge", so index(...) >= 0 would be perfectly fine.

The reason the string comparison operators are not suitable for numerical comparisons is that they don't use different rules than the numerical comparison operators. 

$ perl -E'say 2 >= 10 ? 1 :0'
0

$ perl -E'say 2 ge 10 ? 1 :0'
1  # Because 2 ge 1

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In reply to Re^2: Better way to search array for elements in other array? by ikegami
in thread Better way to search array for elements in other array? by echo5

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