Millised andmetüübid sobivad Map-struktuuris võtmetena kasutamiseks?

In Go, keys in a map structure can only be of types that support the equality comparison operation (== and !=). This is important because, to search for a value by key, the keys need to be compared.

Suitable key types:

• Simple types: int, float64, string, bool, etc.
• Pointers
• Structs, if all their fields are comparable
• Arrays, if their elements are comparable

Cannot be used as keys:

• Slices (slice)
• Maps (map)
• Functions

Example of usage:

m := make(map[string]int)
m["apple"] = 5
m["banana"] = 3

fmt.Println(m["apple"]) // 5

Trying to use a slice as a key will result in a compile-time error.