CODEWITHSUNDEEP
rubyfile-io
Ahmed Ahmed
Ahmed Ahmed

Reputation: 105

ruby output from file.

I want to output data(integers) onto a file called stdout.txt. The trouble seems to be that my code overwrites the existing data in the file instead of adding to it line by line. 

if failPlaces.empty? == false
  puts "position: #{failPlaces.last}"
  output = File.open( "stdout","w" )
  output << "#{failPlaces.last}\n"
  output.close
else
  puts "He Passes it!!!!!!!!!!!!!!!!!"
  output = File.open( "stdout","w" )
  output << "Pass\n"
  output.close
end

I would like to understand why my code is behaving like this and what the solution would be.

Upvotes: 0

Views: 75

Answers (1)

Nabeel
Nabeel

Reputation: 2302

Given a file named stdout.txt you can write it as such (remember to use a rather than w). w will overwrite everything in the file whereas a will append if file exists, otherwise creates a new file.

Here is a list of Ruby IO modes

failPlaces = [1, 2]

if failPlaces.empty?
  puts "He Passes it!!!!!!!!!!!!!!!!!"
  output = File.open('stdout.txt', 'a')
  output << "Pass\n"
  output.close
else
  puts "position: #{failPlaces.last}"
  output = File.open('stdout.txt', 'a')
  output << "#{failPlaces.last}\n"
  output.close
end

Upvotes: 1

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