Ruby Challenge: Csv_for_the_win

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Task Details:

Execute the code against the input file (somefile.txt).
The expected output results are below.

285.30099

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Input File Contents (somefile.txt):

1,2,3,4,0.1,2.2,12,4.00099,234,5,4,3,2,9

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Csv_for_the_win Challenge Solution

for arg in ARGV
   file = File.open(arg)

   file_data = file.read

   arr = file_data.split(",").map(&:to_f)

   print arr.sum
end

Solution Notes:

Firstly, convert the string input into an array of characters. The .split(“,”) method splits the data into the comma “,” delimeter since this text file is in the form of a CSV. The .map() method converts the split file into an array. The &:to_f method converts all the elements within the array to be in the float format. Finally, the .sum method adds all the array elements tp produce the required output.