Created
September 22, 2019 11:29
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// Animalクラスの定義 | |
class Animal { | |
// コンストラクタの定義 | |
constructor(name) { | |
this.name = name; | |
} | |
// speakメソッドの定義 | |
speak() { | |
console.log(this.name + "「鳴き声」"); | |
} | |
// sleepメソッドの定義 | |
sleep() { | |
console.log(this.name + "「zzz」"); | |
} | |
} | |
// Catクラスの定義 | |
class Cat extends Animal { | |
// コンストラクタの定義 | |
constructor(name) { | |
// 親クラスのコンストラクタを実行 | |
super(name); | |
} | |
// speakメソッドを定義 | |
speak() { | |
console.log(this.name + "「にゃーん」"); | |
} | |
} | |
// もちろんAnimalやCatは今までと同様に使用可能 | |
// Animalのインスタンスを作成 | |
var myAnimal = new Animal("ポチ"); | |
myAnimal.speak(); // "ポチ「鳴き声」" | |
myAnimal.sleep(); // "ポチ「zzz」" | |
// Catのインスタンスを作成 | |
var myCat = new Cat("たま"); | |
myCat.speak(); // "たま「にゃーん」" | |
myCat.sleep(); // "たま「zzz」" |
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