Question

How to count the number of digits in a number with Ruby

Answer 1

n = 38729

total_digit = Math.log10(n).to_i + 1

print total_digit



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Answer 2

def num_digits(n)
    return Math.log10(n).to_i + 1
end
 
n = 38729
 
puts num_digits(n)
 
 
 
 
 
#
# run:
# 
# 5
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