push all exercices

ch5/3/ch5_3.go

@@ -0,0 +1,13 @@
+package main
+
+import "fmt"
+
+func prefixer(prefix string) func(string) string {
+	return func(s string) string { return prefix + " " + s }
+}
+
+func main() {
+	helloPrefix := prefixer("Hello")
+	fmt.Println(helloPrefix("Bob"))   // should print Hello Bob
+	fmt.Println(helloPrefix("Maria")) // should print Hello Maria
+}

ch5/3/go.mod

@@ -0,0 +1,3 @@
+module ch5_3
+
+go 1.25.0