Initial Commit

Code/2.functions.jl

@@ -0,0 +1,31 @@
+
+# Standard function definition
+function f(x, y)
+    return x + y
+end
+
+# Function implicitly returns the value of the last line
+# of the function so no return keyword is required
+function g(x, y)
+    x - y
+end
+
+# Functions can be defined one one line like this.
+# This is just a shorthand and is compiled identically to the ones above
+h(x, y) = x * y
+
+
+# Can enforce types on function arguments and return value
+# This makes it possible to create multiple functions
+# with the same name but different types; These are called methods
+f(x::Float64, y::Float64)::Float64 = x / y
+
+
+# Runs the generic method of the function at the top of the file
+println(f(2, 3))
+
+# Runs the specific method defined for two Float64.
+println(f(2.2, 3.2))
+
+# Also falls back the the generic method as input is (::Float64, ::Int64)
+println(f(1.6, 3))