FAQ: Redacted! - Great Work!


This community-built FAQ covers the “Great Work!” exercise from the lesson “Redacted!”.

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Hi how would you edit this code to redact mutiple words and save the output as a variable?

puts "Enter some text: "
text = gets.chomp

puts "Enter words to redact: "
redact = gets.chomp

words = text.split(" ")
words.each do |word|
if word == redact
print "REDACTED "
print word + " "


Multiple words means giving the program an array of words to redact, so multiple inputs, or one space separated input that can be split into an array.

puts "Enter one or more spaced separated words"
redacts = gets.chomp
redacts = redacts.split()

That means we now have to iterate over the phrase array once for each word in the redacts array, meaning nested .each loops, or another method to see if the word from the phrase is in the redacts array (array.include? comes to mind).

In order to return a list of redacted words which only really makes sense if we want a count since we inputted them, already. If all we want is the list, then return redacts, else build an array and on the return use it to create a histogram.

Something of note about this basic code: It cannot distinguish end in end. or "end", etc. This is a greater challenge to overcome, but first succeed at the initial objective and try to improve once that’s working as expected.

puts "Text to search through: "
text = gets.chomp
puts "Words to redact "
redact = gets.chomp


words = text.split(" ")

words.each do |letters|
 if redact.include? letters
   print "REDACTED "
   print letters + " "
  • What could you do to make sure your redactor redacts a word regardless of whether it’s upper case or lower case? :white_check_mark:

  • How could you make your program take multiple, separate words to REDACT? :white_check_mark:
    In the beginning I was overthinking it, trying to think about using nested .each. And also finding different ways of comparing arrays:

matches = words & redacted
no_matches = words - redacted

matches.each do |letters|
  print "REDACTED "
no_matches.each do |redacted|
  print redacted + " "

# However I couldn't manage the way to print the result in the right order.

#=>Text to search through:
#=>Hello my name is
#=>Words to redact:
#=>Hello name

Turns out using .include? waaaaay simpler. I can’t believe it took me so long to figure this out.:scream:

  • How might you make a new redacted string and save it as a variable, rather than just printing it to the console? :poop:
    I could only save it as a local variable result.
words.each do |letters|
 if redact.include? letters
   x = "REDACTED "
   y = letters + " "
  result = "#{x} #{y}"
  print result

If anyone knows how to do this last bit, please let me know