Go string vs buffer vs strings builder timings

main.go

package main


import (
	"strings"
	"bytes"
	"fmt"
	"time"
)

const Loops= 10000

func main() {

	withBuffer()
	withStringsBuilder()
	withoutBuffer()
}

func withoutBuffer() {
	start := time.Now()
	var a string

	for i := 0; i < Loops; i++ {
		a += "Hello "
	}

	elapsedTime := time.Since(start)
	
	fmt.Println("Running without Buffer ...")
	fmt.Println(elapsedTime)
}


func withBuffer() {
	start := time.Now()
	var b bytes.Buffer

	for i := 0; i < Loops; i++ {
		b.WriteString("Hello ")
	}

	elapsedTime := time.Since(start)
	
	fmt.Println("Running with Buffer ...")
	fmt.Println(elapsedTime)
}

func withStringsBuilder() {
	start := time.Now()
	var b strings.Builder

	for i := 0; i < Loops; i++ {
		b.WriteString("Hello ")
	}

	elapsedTime := time.Since(start)
	
	fmt.Println("Running with Strings Builder ...")
	fmt.Println(elapsedTime)
}