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/\d/ # contains a digit
/^\D*$/ # doesn't contain a digit
/[abc]/ # contains either the letter a, b, or c
/^[^abc]*$/ # doesn't contain a, b, or c
/foo|bar/ # contains foo or bar
/???????/ # doesn't contain foo or bar
Who can help me with this? I couldn’t find any solution but I need a regex to negate this without any programmable logic.
You can use negative lookahead assertion as:
See it