什么与JavaScript中无条件的Go开关最接近？

Question

In Go, I can use a switch without a condition, and instead provide the conditions in the case branches, such as:

package main

import (
    "fmt"
    "time"
)

func main() {
    t := time.Now()
    switch {
    case t.Hour() < 12:
        fmt.Println("Good morning!")
    case t.Hour() < 17:
        fmt.Println("Good afternoon.")
    default:
        fmt.Println("Good evening.")
    }
}

(Taken from https://tour.golang.org/flowcontrol/11)

What I like about this approach is that it is much cleaner than if-else if-else if-…. Unfortunately, this construct is not possible in JavaScript.

How could I create something that looks like this as closely as possible, using some (weird) language constructs?

Answer 1

You can use virtually the same construct as in Go:

var now = new Date();

switch (true) {
  case now.getHours() < 12:
    console.log('Good morning');
    break;
  case now.getHours() < 17:
    console.log('Good afternoon');
    break;
  default:
    console.log('Good evening');
}

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