Initial commit

08-numbers-and-strings/02-strings/03-string-length/01-len/main.go

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+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import "fmt"
+
+func main() {
+	name := "carl"
+
+	// strings are made up of bytes
+	// len function counts the bytes in a string value
+	fmt.Println(len(name))
+}

08-numbers-and-strings/02-strings/03-string-length/02-unicode-len/main.go

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+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func main() {
+	// strings are made up of bytes
+
+	// len function counts the bytes in a string value.
+	//
+	// This string literal contains unicode characters.
+	//
+	// And, unicode characters can be 1-4 bytes.
+	// So, "İnanç" is 7 bytes long, not 5.
+	//
+	// İ = 2 bytes
+	// n = 1 byte
+	// a = 1 byte
+	// n = 1 byte
+	// ç = 2 bytes
+	// TOTAL = 7 bytes
+	name := "İnanç"
+	fmt.Printf("%q is %d bytes\n", name, len(name))
+
+	// To get the actual characters (or runes) inside
+	// a utf-8 encoded string value, you should do this:
+	fmt.Printf("%q is %d characters\n",
+		name, utf8.RuneCountInString(name))
+}