Explanation of Lookaheads in This Regular Expression

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暗喜
暗喜 2020-12-18 01:41

I understand regular expressions reasonably well, but I don\'t get to make use of them often enough to be an expert. I ran across a regular expression that I am using to va

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  •  臣服心动
    2020-12-18 02:23

    The look-ahead assertions are used to ensure that there are at least one digit, one lowercase and one uppercase letter in the string.

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