In Go, the len() function can be used to get the size or length of a hash. Here's an example code snippet that shows how to get the size of a hash in Go:
package main
import "fmt"
func main() {
// Create a hash
myHash := make(map[string]string)
myHash["one"] = "uno"
myHash["two"] = "dos"
myHash["three"] = "tres"
// Get the size of the hash
size := len(myHash)
// Print the size of the hash
fmt.Println("Size of the hash:", size)
}
This code creates a hash using the make() function and adds some key-value pairs to it. Then, the len() function is used to get the size of the hash, which is stored in the size variable. Finally, the size of the hash is printed to the console using fmt.Println().