Ruby/Threads/Thread.new

thread = Thread.new do
  t = Thread.current
  t[:var1] = "This is a string"
  t[:var2] = 365
end
x = thread[:var1]               # "This is a string"
y = thread[:var2]               # 365
has_var2 = thread.key?("var2")  # true
has_var3 = thread.key?("var3")  # false

n = 1
while n <= 3
  Thread.new { puts n }
  n += 1
end

x = 1
y = 2
thread3 = Thread.new do
  sleep(rand(0))
  x = 3
end
sleep(rand(0))
puts x

n = 1
while n <= 3
  # Get a private copy of the current value of n in x
  Thread.new(n) {|x| puts x }
  n += 1
end

thread = Thread.new do
  t = Thread.current
  t["var3"] = 25
  t[:var4] = "foobar"
  var3 = 99            # True local variables (not accessible from outside)
  var4 = "zorch"       
end
a = thread[:var3]      # 25
b = thread["var4"]     # "foobar"

1.upto(3) {|n| Thread.new { puts n }}