NAKKA-K

package main

import "fmt"

type FlyBehavior interface {
	Fly()
}

type FlyWithWings struct{}

NAKKA-K

package main

import (
	"fmt"
	"testing"
)

func TestStrategyPattern(t *testing.T) {
	ducks := []Duck{
		NewMallardDuck(),

NAKKA-K

package main

import "fmt"

type QuackBehavior interface {
	Quack()
}

type Quack struct{}

NAKKA-K

package main

import "fmt"

type Duck interface {
	PerformFly()
	PerformQuack()
	Swim()
	Display()
}

NAKKA-K

let twice = fn(f, x) {
	return f(f(x));
};
let addTwo = fn(x) {
	return x + 2;
};
twice(addTwo, 2);

let unless = macro(condition, consequence, alternative) {
	quote(if (!(unquote(condition))) {

NAKKA-K

package main

import (
	"fmt"
)

func main() {
	// とりあえず初期化
	var dam WaterIntake = &Dam{Store: []string{"水", "水", "水"}}
	var filtrationPlant Filtration = &FiltrationPlant{}

NAKKA-K

<?php

namespace App\Policies;

use App\User;
use App\Post;
use Illuminate\Auth\Access\HandlesAuthorization;

class PostPolicy
{

NAKKA-K

class HelloComponent extends React.Component {
  constructor(props) {
    super(props);
    // handlerを使用する場合、ここでbindする
  }
  
  //ES6 Classのメソッド記法はfunctionが必要ない
  render() {
    return (
      <div className="hello">

NAKKA-K

package main

import (
    "fmt"
    "io/ioutil"
    "os"
    "strings"
)

func main() {

NAKKA-K

    def fib(n):
        print(n, end=' ') # 計算を可視化するためのprint
        if n < 2:
            return n
        return fib(n - 1) + fib(n - 2)