Hatewait

Minimalistic "stopwatch" implementation. Written in Golang 1.13. Dependencies free.

Installation

go get github.com/vkorobkov/hatewait

Examples

Functional approach

Measure how many milliseconds does the job take:

import (
	"fmt"
	"github.com/vkorobkov/hatewait"
	"time"
)

func main() {
	elapsedMs := hatewait.MillisecondsOf(func() {
		time.Sleep(1000 * 9000)
	})

	fmt.Printf("The computation took %v milliseconds\n", elapsedMs)
}

All available functions:

func DurationOf(x func()) time.Duration
func NanosecondsOf(x func()) int64
func MicrosecondsOf(x func()) int64
func MillisecondsOf(x func()) int64
func SecondsOf(x func()) int64
func HoursOf(x func()) int64

Imperative approach

Measure how many milliseconds does the job take:

import (
	"fmt"
	"github.com/vkorobkov/hatewait"
	"time"
)

func main() {
	startedAt := hatewait.Start()

	time.Sleep(1000 * 9000)

	elapsedMs := hatewait.MillisecondsSince(startedAt)

	fmt.Printf("The computation took %v milliseconds\n", elapsedMs)
}

All available functions:

func DurationSince(since time.Time) time.Duration
func NanosecondsSince(since time.Time) int64
func MicrosecondsSince(since time.Time) int64
func MillisecondsSince(since time.Time) int64
func SecondsSince(since time.Time) int64
func HoursSince(since time.Time) int64