javascript class 繼承

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//類的定義
class Animal {
//ES6中新型構造器
constructor(name) {
this.name = name;
}
//執行個體方法
sayName() {
console.log(‘My name is ‘+this.name);
}
}

//類的繼承
class Programmer extends Animal {
constructor(name) {
//直接調用父類構造器進行初始化
super(name);
}
program() {
console.log("I‘m coding...");
}
}

//測試我們的類
var animal=new Animal(‘dummy‘),
wayou=new Programmer(‘wayou‘);
animal.sayName();//輸出 ‘My name is dummy’
wayou.sayName();//輸出 ‘My name is wayou’
wayou.program();//輸出 ‘I‘m coding...’

javascript class 繼承