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How to count the numbers in array by their first N digits in Ruby



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asked Oct 17, 2021 by avibootz
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1 Answer

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arr = [589, 8347, 5893725, 2, 1817112, 58900123]

result = arr.count { |num| num.to_s.start_with? '589' }

puts result



 
 
#
# run:
# 
# 3
#

 



answered Oct 17, 2021 by avibootz

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