check function execution speed go code example

Example: goland print the time it took for code to run

package main 

import (
	"time" // Import this to be able to track time
	"fmt" // Import this to print in console
)

//This app will check how long it takes for the computer to print 2000 numbers

func main () {
	start := time.Now()

	for i := 0; i < 2000; i++{
		fmt.Println(i)
	}

	elapsed := time.Since(start) // This will check how long has passed since time.Now() was executed
	fmt.Println(elapsed)
}