[Go] switch without variable demo

package main

import (
    "fmt"
)

func main() {
    score := 88

    switch {
    case score >= 90:
        fmt.Println("A")
    case score >= 80:
        fmt.Println("B")
    case score >= 70:
        fmt.Println("C")
    case score >= 60:
        fmt.Println("D")
    default:
        fmt.Println("F")
    }
}