June 2018 Update

Task/Apply-a-callback-to-an-array/Julia/apply-a-callback-to-an-array.julia

@@ -1,22 +1,8 @@
 numbers = [1, 3, 5, 7]
 
-square1 = [square(n) for n in numbers]     # list comprehension
-
-squares2a = map(square, numbers)            # functional form
-
-squares2b = map(x -> x*x, numbers)     # functional form with `lambda`
-
-#There is also extended block form for the map function
-squares2c = map(numbers) do x
-	sum = 0
-	for i = 1:x
-		sum += x^2				#trivial, but you get the point
-	end
-	return sum
-end
-
-squares3 = [n * n for n in numbers]         # no need for a function,
-
-squares4 = numbers .* numbers				# element-wise operation
-
-squares4a = numbers .^ 2	#  most arithmetic operations can be done element-wise
+@show [n ^ 2 for n in numbers]                  # list comprehension
+square(x) = x ^ 2; @show map(square, numbers)   # functional form
+@show map(x -> x ^ 2, numbers)                  # functional form with anonymous function
+@show [n * n for n in numbers]    				# no need for a function,
+@show numbers .* numbers                        # element-wise operation
+@show numbers .^ 2                              # includes .+, .-, ./, comparison, and bitwise operations as well