ruby - How do I match repeated characters? -

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how find repeated characters using regular expression?

if have aaabbab, match characters have 3 repetitions:

aaa

try string.scan(/((.)\2{2,})/).map(&:first), string string of characters.

the way works looks character , captures (the dot), matches repeats of character (the \2 backreference) 2 or more times (the {2,} range means "anywhere between 2 , infinity times"). scan return array of arrays, map first matches out of desired results.


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