What does the string data type in Go look like?

In Go, the string type represents an immutable sequence of bytes, typically used to store text data in UTF-8 encoding. Strings in Go are byte slices with a fixed length, where each element is a byte.

Features:

• Strings are immutable: you cannot change individual bytes within a string.
• You can easily get the length of a string in bytes using len().
• To work with Unicode characters (runes), the rune type is used.

Example:

s := "Привет"
fmt.Println(len(s)) // Prints the number of bytes, not characters
runes := []rune(s)
fmt.Println(len(runes)) // Prints the number of characters

Thus, string in Go is a convenient and efficient type for working with text, but it is important to remember the difference between bytes and Unicode characters.