What components does a string consist of in the Go language?

In the Go language, a string (string) represents an immutable sequence of bytes, typically used to store text in UTF-8 encoding. The main components of a string in Go:

• Bytes — the byte sequence itself, which holds the data.
• Length — the number of bytes in the string.

Internally, a string is implemented as a structure with a pointer to a byte array and a length. The string does not contain an explicit separator or terminator.

It is important to understand that a string is not an array of characters (runes), but a sequence of bytes. To work with Unicode characters, the rune type and functions from the unicode/utf8 package are used.

Example:

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