Golang golang-deferpanic (snippet)

Go programming example 'golang-deferpanic'

golang-deferpanic

Golang beginners example: golang-deferpanic

package main

import (
    "fmt"
)

func main() {
    func() {
        defer func() {
            fmt.Println("1st lvl defer")
        }()
        fmt.Println("1st lvl start")
        func() {
            defer func() {
                fmt.Println("2nd lvl defer")
                fmt.Println("recover", recover())
            }()
            fmt.Println("2nd lvl start")
            func() {
                defer func() {
                    fmt.Println("3rd lvl defer")
                }()
                fmt.Println("3rd lvl start")
                func() {
                    defer func() {
                        fmt.Println("4th lvl defer")
                    }()
                    fmt.Println("4th lvl start")
                    fmt.Println("panic")
                    panic(0)
                    fmt.Println("4th lvl finish")
                }()
                fmt.Println("3rd lvl finish")
            }()
            fmt.Println("2nd lvl finish")
        }()
        fmt.Println("1st lvl finish")
    }()
}

Useful links

• Learn Go: https://golangr.com
• Download Go: https://golang.org