Xu Cheng a8566c9848 various: eliminate the usage of any? (#638)
`any?` is not the opposite of `empty?`. Besides the case that
`[false, nil].any?` will return false, `any?`(O(n)) has much worse
performance than `empty?`(O(1)).
2016-08-05 22:01:32 +08:00
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2015-08-03 13:22:35 +01:00