String check with equal fold

string_check_equalfold.go

package main

import (
	"fmt"
	"strings"
)

var (
	ASK_SIDE = "ask"
	BID_SIDE = "bid"
)

func main() {

	side := "BiD"

	switch {
	case strings.EqualFold(side, BID_SIDE):
		fmt.Println("switch bid_side:", BID_SIDE)
	case strings.EqualFold(side, ASK_SIDE):
		fmt.Println("switch ask_side:", ASK_SIDE)
	default:
		fmt.Println("unknown:", side)
		return
	}

	fmt.Println("Hello, playground")
}