exercices of section 13

Section13/4.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func main() {
+	s1 := "Go is cool!"
+
+	x := s1[0]
+	fmt.Println(x)
+
+	// ERROR -> cannot assign to s1[0]
+	// s1[0] = 'x'
+
+	// printing the number of runes in the string
+	// fmt.Println(len(s1))
+	fmt.Println(utf8.RuneCountInString(s1))
+
+}