learn_ruby_ch3_pt4

Question 1

loop statement (get string)

Answer 1

loop do
  print "Type something: "
  line = gets
  break if line =~ /q|Q/
  puts line
end

Question 2

for loop print 1 through 5

Answer 2

for i in 1..5 do
print i, “ “
end

“do” is optional

Question 3

times loop to print 0 through 9

Answer 3

10.times { |i | print i, “ “ } # => 0 1 2 3 4 5 6 7 8 9

Question 4

upto loop (times table for 2)

Answer 4

1.upto(12) { |i| print “2 × “ + i.to_s + “ = “, i * 2, “\n”}

Question 5

downto loop (5 4 3 2 1)

Answer 5

5.downto(1) { |i| print i, “ “ }