Regular Expression: Searching and Replacing 2 or more digits in Ruby

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I found this regular expression to match 2 or more digits in Ruby and then replace it:

a = %w(4 1 1 0 4 4 0 0 4 4 4)
a.join.gsub(/4{2,}/,'ab')

Output would be

4 1 1 0 a b 0 0 a b

1 year 41 weeks ago   Tags:


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