Переопределите disable
How do I make an Переопределите disable?
What is a Переопределите disable? How do you make a Переопределите disable? This script and codes were developed by Gonchar Dima on 21 August 2022, Sunday.
Переопределите disable - Script Codes HTML Codes
<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Переопределите disable</title>
</head>
<body> <p>Переопределите метод disable холодильника, чтобы при наличии в нём еды он выдавал ошибку.</p> <script src="js/index.js"></script>
</body>
</html>
Переопределите disable - Script Codes JS Codes
function Machine(power) { this._power = power; this._enabled = false; var self = this; this.enable = function() { self._enabled = true; }; this.disable = function() { self._enabled = false; };
}
function Fridge(power) { // унаследовать Machine.apply(this, arguments); var food = []; // приватное свойство food this.addFood = function() { if (!this._enabled) { throw new Error("Холодильник выключен"); } if (food.length + arguments.length >= this._power / 100) { throw new Error("Нельзя добавить, не хватает мощности"); } for (var i = 0; i < arguments.length; i++) { food.push(arguments[i]); // добавить всё из arguments } }; this.getFood = function() { // копируем еду в новый массив, чтобы манипуляции с ним не меняли food return food.slice(); }; this.filterFood = function(func) { var filtered = []; for (var j = 0; j < food.length; j++) { if (func(food[j]) === true) { filtered.push(food[j]); } } return filtered; }; this.removeFood = function(item) { for (var k = 0; k < food.length; k++) { if (food[k] == item) { food.splice(k, 1); } } }; var pearentDisable = this.disable; this.disable = function(){ if(food.length) throw new Error ('Нельзя выключать - еда протухнет!') pearentDisable.call(this); }
}
//Код для проверки:
var fridge = new Fridge(500);
fridge.enable();
fridge.addFood("кус-кус");
fridge.disable(); // ошибка, в холодильнике есть еда
Developer | Gonchar Dima |
Username | crauler |
Uploaded | August 21, 2022 |
Rating | 3 |
Size | 2,186 Kb |
Views | 32,384 |
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