Ruby

Day 19/Arity_method.rb

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+# Using Arity method in procs
+
+# This method allows us to find how many arguments a proc object expects to receive
+
+my_proc = Proc.new{|x| "Filly " * x}
+
+puts "Hey Filly...! I need #{my_proc.arity} arguments"
+
+puts my_proc.call(5)
+
+
+my_proc = Proc.new{|x, y| "Filly " * (x + y) }
+
+puts "Hey Filly...! I need #{my_proc.arity} arguments"
+
+
+my_proc = Proc.new{|x, *rest| "#{x} and #{rest}"}
+
+puts "Hey Filly...! I need #{my_proc.arity} arguments"
+
+
+my_proc = Proc.new{|x, *rest| "#{x} and #{rest}"}
+
+puts "Hey Filly...! I need #{~my_proc.arity} arguments and rest are optional"

Day 19/Difference_between_Procs_&_Lambda.rb

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+# Difference between Procs and Lambda
+
+# Program of a Proc
+
+def my_method
+
+        puts "Before Proc"
+
+        my_proc = proc{
+
+            puts "Inside Proc"
+        }
+
+    my_proc.call
+
+    puts "After Proc"
+
+end
+
+my_method
+
+
+
+def my_method
+
+        puts "Before Proc"
+
+        my_proc = proc{
+
+            puts "Inside Proc"
+
+            return
+        }
+
+    my_proc.call
+
+    puts "After Proc"
+
+end
+
+my_method
+
+
+
+# Program of a Lambda
+
+def my_method
+
+        puts "Before Proc"
+
+        my_proc = lambda{
+
+            puts "Inside Proc"
+        }
+
+    my_proc.call
+
+    puts "After Proc"
+
+end
+
+my_method
+
+
+def my_method
+
+        puts "Before Proc"
+
+        my_proc = lambda{
+
+            puts "Inside Proc"
+
+            return
+        }
+
+    my_proc.call
+
+    puts "After Proc"
+
+end
+
+my_method
+
+
+
+def my_method
+
+        puts "Before Proc"
+
+        my_proc = lambda{
+
+            puts "Inside Proc"
+
+            break
+        }
+
+    my_proc.call
+
+    puts "After Proc"
+
+end
+
+my_method