Upload ready assignment 3

Assignments/assignment3.exs

+#Part 1
+
+#Implement a Elixir script that:
+
+#Ask a number from the user.
+#If given number is evenly divisible by 3, print Divisible by 3.
+#If given number is evenly divisible by 5, print Divisible by 5.
+#If given number is evenly divisible by 7, print Divisible by 7.
+#If given number is not evenly divisible by 3, 5 or 7, find smallest value (excluding 1) that number is evenly divisible for and print that value to the output.
+
+user_input = IO.gets("Give a number: ")
+trimmed_input = String.trim(user_input) #user input trimmed version without blank spaces etc.
+number = String.to_integer(trimmed_input) #number is the trimmed user input string changed into integer
+
+case {rem(number, 3), rem(number, 5), rem(number, 7)} do # I use case - do to handle the conditions comparing against given patterns
+  {0, _, _} -> IO.puts("Divisible by 3")
+  {_, 0, _} -> IO.puts("Divisible by 5")
+  {_, _, 0} -> IO.puts("Divisible by 7")
+  _ ->
+    smallest_divisor = Enum.find(2..number-1, &rem(number, &1) == 0) || number #if cases above do not match, the smallest value (excluding 1) that number is evenly divisible for is searched with enum
+    IO.puts("Smallest divisor for #{number} is: #{smallest_divisor}") #smallest divisor value is printed
+end
+
+
+
+
+#Part 2
+
+#Write an anonymous function that takes two parameters:
+
+#Use a guard to check if both parameters are a string type. If so, return a combined string of the parameters.
+#If parameters are not strings, return the addition result of the parameters.
+#Test your anonymous function with string and number parameters and print the results.
+
+string_or_number = fn #anonymous function that has guards
+    a, b when is_binary(a) and is_binary(b) -> a <> b #if both are string type, strings are combined
+    a, b -> a + b #if they are not strings, they are added
+    _ -> IO.puts "The given values are neither both strings or both integers."
+end
+
+#tests:
+IO.puts(string_or_number.("kissa", "koira"))
+IO.puts(string_or_number.(34, 2))