functions

go/01-basics/11-functions.go

@@ -0,0 +1,36 @@
+package main
+
+import "fmt"
+
+func plus(a int, b int) int {
+	return a + b
+}
+
+func plusPlus(a, b, c int) int {
+	return a + b + c
+}
+
+func plusNamed(a, b int) (result int) {
+	result = a + b
+	return
+}
+
+func plusDescription(a int, b int) (int, string) {
+	result := a + b
+	return result, fmt.Sprintf("%d+%d = %d", a, b, result)
+}
+
+func main() {
+
+	res := plus(1, 2)
+	fmt.Println("1+2 =", res)
+
+	res = plusPlus(1, 2, 3)
+	fmt.Println("1+2+3 =", res)
+
+	res = plusNamed(1, 2)
+	fmt.Println("1+2 =", res)
+
+	_, desc := plusDescription(1, 2)
+	fmt.Println(desc)
+}