interfaces

interfaces/go.mod

@@ -0,0 +1,3 @@
+module lovelynet.net/interfaces
+
+go 1.17

interfaces/main.go

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+package main
+
+import "fmt"
+
+type bot interface {
+	getGreeting() string
+}
+
+type englishBot struct{}
+type spanishBot struct{}
+
+func main() {
+	eb := englishBot{}
+	sb := spanishBot{}
+
+	printGreetings(eb)
+	printGreetings(sb)
+}
+
+func printGreetings(b bot) {
+	fmt.Println(b.getGreeting())
+}
+
+func (englishBot) getGreeting() string {
+	// Very custom logic
+	return "Hello"
+}
+
+func (spanishBot) getGreeting() string {
+	// Very custom logic
+	return "Hola!"
+}

maps/go.mod

@@ -0,0 +1,3 @@
+module lovelynet.net/maps
+
+go 1.17

maps/main.go

@@ -0,0 +1,19 @@
+package main
+
+import "fmt"
+
+func main() {
+	colours := map[string]string{
+		"red":   "#ff0000",
+		"green": "#4bf745",
+		"white": "#ffffff",
+	}
+
+	printMap(colours)
+}
+
+func printMap(c map[string]string) {
+	for colour, hex := range c {
+		fmt.Println(colour, hex)
+	}
+}