Millises järjekorras täidetakse Go-s delegeeritud funktsioonid (defer)?

Deferred functions are executed in the reverse order of their declaration, i.e., LIFO (Last-In, First-Out).

package main

import "fmt"

func main() {
	defer fmt.Println("first") // Declared last
	defer fmt.Println("second") // Declared before last
	defer fmt.Println("third") // Declared first
}

As a result, when this code runs, it will output:

third
second
first

When exiting the scope (function) where defer was declared, the deferred functions are called in reverse order. This is useful for releasing resources, closing files, unlocking mutexes, and other cleanup operations.