六个字符的正则表达式，至少有一位

Question

I am looking for a regex with at least 6 characters (no limit) including at least one digit. No spaces allowed.

I have this this regex:

^(?=.*\d).{4,8}$

However, I don't want to limit to 8 characters.

Answer 1

a regex with at least 6 characters (no limit) including at least one digit. no spaces allowed.

^(?=\D*\d)\S{6,}$

Or

^(?=\D*\d)[^ ]{6,}$

See demo

• ^ Start of string
• (?=\\D*\\d) - Must be 1 digit (the lookahead is based on the principle of contrast )
• \\S{6,} - 6 or more non-whitespaces
  OR
  [^ ]{6,} - 6 or more characters other than literal normal space

To enable the regex to match more than 6 characters, you only need to adjust the quantifier. See more about limiting quantifiers here .

Answer 2

^(?=.*\\d)([\\w]{6,})$

我认为它应该可以正常工作