【JavaScript】ES5とES6において、親クラス継承の違い - Qiita

<script> //親 function Phone(brand, price) { this.brand = brand; this.price = price; } Phone.prototype.call = function () { console.log(" give XXX a call") } //子 function smartPhone(brand, price, color, size) { Phone.call(this, brand, price); this.color = color; this.size = size; } smartPhone.prototype = new Phone; //親を呼び出す smartPhone.prototype.constructor = smartPhone; //子 メソッドの追加 smartPhone.proto