doing 7.1

cookbook/007/01.rb

@@ -0,0 +1,28 @@
+# WRONG
+# aBlock = { |x| puts x }
+
+# RIGHT
+aBlock = lambda { |x| puts x }
+
+aBlock.call "Hello World!"
+
+
+def my_lambda(&aBlock)
+  aBlock
+end
+
+b = my_lambda { puts "Hello World My Way!" }
+b.call
+
+aBlock = Proc.new { |x| puts x }
+aBlock = proc { |x| puts x }
+aBlock = lambda { |x| puts x }
+
+add_lambda = lambda { |x,y| x + y }
+# add_lambda.call(4)
+# add_lambda.call(4,5,6)
+puts add_lambda.call(4,2)
+
+add_procnew = Proc.new { |x,y| x + y }
+# add_procnew.call(4)
+puts add_procnew.call(4,5,6)