Christoph Berger christophberger

## futures.go
package main

import (
	"fmt"
	"time"
)

func main() {
	c := make(chan int)

## append_question.go
package main

import (
	"fmt"
)

func main() {
	x := make([]int, 1, 10)

	var a []int

## what is the reflection and why it's cool and dangerous at the same time
The Package reflect in the Go standard library implements run-time reflection, allowing a program to manipulate objects with arbitrary types.
We can build with the reflection package a kind of generic functionality. Because this package give us the possibility to determine the meta information of a function and it's input and output arguments while runtime.
Be careful when you start to use the reflection package it's hard to debug run time errors. For more information about reflection, I can recommend the following article about reflection.
See "The Laws of Reflection" for an introduction to reflection in Go: https://golang.org/doc/articles/laws_of_reflection.html

If you want see reflection in action below is a example:


## tui4main.go
func main() {
	if len(os.Args) <= 1 {
		log.Println("Usage: go run tui.go [termui|gocui]")
		return
	}
	if os.Args[1] == "termui" {
		runTermui()
		return
	}
	if os.Args[1] == "gocui" {

## tui3gocui.go
func runGocui() {
	// Create a new GUI.
	g, err := c.NewGui(c.OutputNormal)
	if err != nil {
		log.Println("Failed to create a GUI:", err)
		return
	}
	defer g.Close()

	// Activate the cursor for the current view.

## tui2termui.go
func runTermui() {
	// Initialize termui.
	err := t.Init()
	if err != nil {
		log.Fatalln("Cannot initialize termui")
	}
	// `termui` needs some cleanup when terminating.
	defer t.Close()

	// Get the height of the terminal.

## tui1start.go
package main

// Under normal circumstances, importing two UI libraries at the
// same time is probably not a good idea, as each has its own event
// loop. This demo code takes care of using only one of these
// libraries at a time.
import (
	"fmt"
	"log"
	"os"

## tui_code_1_start.go
package main

// Under normal circumstances, importing two UI libraries at the
// same time is probably not a good idea, as each has its own event
// loop. This demo code takes care of using only one of these
// libraries at a time.
import (
	"fmt"
	"log"
	"os"

## container.go
package main

import (
	"fmt"
	"os"
	"os/exec"
	"syscall"
)

func main() {

## keybase.md

      
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                christophberger
                / keybase.md
            
            
              Created
              September 15, 2016 08:43
            
          
      View keybase.md
  
      
    Keybase proof
I hereby claim:

I am christophberger on github.
I am christophberger (https://keybase.io/christophberger) on keybase.
I have a public key ASC8b-gcdQzzyAjieAUZNehGbw2z1Fd2V2xp8SduLfHYxAo

To claim this, I am signing this object:
	package main

	import (
	"fmt"
	"time"
	)

	func main() {
	c := make(chan int)
	The Package reflect in the Go standard library implements run-time reflection, allowing a program to manipulate objects with arbitrary types.
	We can build with the reflection package a kind of generic functionality. Because this package give us the possibility to determine the meta information of a function and it's input and output arguments while runtime.
	Be careful when you start to use the reflection package it's hard to debug run time errors. For more information about reflection, I can recommend the following article about reflection.
	See "The Laws of Reflection" for an introduction to reflection in Go: https://golang.org/doc/articles/laws_of_reflection.html

	If you want see reflection in action below is a example:
	func main() {
	if len(os.Args) <= 1 {
	log.Println("Usage: go run tui.go [termui\|gocui]")
	return
	}
	if os.Args[1] == "termui" {
	runTermui()
	return
	}
	if os.Args[1] == "gocui" {
	func runGocui() {
	// Create a new GUI.
	g, err := c.NewGui(c.OutputNormal)
	if err != nil {
	log.Println("Failed to create a GUI:", err)
	return
	}
	defer g.Close()

	// Activate the cursor for the current view.
	func runTermui() {
	// Initialize termui.
	err := t.Init()
	if err != nil {
	log.Fatalln("Cannot initialize termui")
	}
	// `termui` needs some cleanup when terminating.
	defer t.Close()

	// Get the height of the terminal.
	package main

	// Under normal circumstances, importing two UI libraries at the
	// same time is probably not a good idea, as each has its own event
	// loop. This demo code takes care of using only one of these
	// libraries at a time.
	import (
	"fmt"
	"log"
	"os"