go-by-test/racer/racer.go

package racer

import (
	"fmt"
	"net/http"
	"time"
)

func Racer(a, b string) string {
	aDuration := measureResponseTime(a)
	bDuration := measureResponseTime(b)

	if aDuration < bDuration {
		return a
	}
	return b
}

func measureResponseTime(url string) time.Duration {
	start := time.Now()
	http.Get(url)
	duration := time.Since(start)
	fmt.Println(duration)
	return duration
}