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Ilya Kantor 2014-11-16 01:40:20 +03:00
parent 962caebbb7
commit 87bf53d076
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15
1-js/8-oop/5-functional-inheritance/1-coffeemachine-fix-run/solution.md Normal file
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Изменения в методе `run`:
```js
this.run = function() {
*!*
if (!this._enabled) {
throw new Error("Кофеварка выключена");
}
*/!*
setTimeout(onReady, 1000);
};
```
[edit src="solution" /]

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1-js/8-oop/5-functional-inheritance/1-coffeemachine-fix-run/solution.view/index.html Executable file
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<!doctype html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<script>
function Machine(power) {
this._enabled = false;
this.enable = function() {
this._enabled = true;
};
this.disable = function() {
this._enabled = false;
};
}
function CoffeeMachine(power) {
Machine.apply(this, arguments);
var waterAmount = 0;
this.setWaterAmount = function(amount) {
waterAmount = amount;
};
function onReady() {
alert('Кофе готов!');
}
this.run = function() {
if (!this._enabled) {
throw new Error("Кофеварка выключена");
}
setTimeout(onReady, 1000);
};
}
var coffeeMachine = new CoffeeMachine(10000);
coffeeMachine.run();
</script>
</body>
</html>

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1-js/8-oop/5-functional-inheritance/1-coffeemachine-fix-run/source.view/index.html Executable file
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<!doctype html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<script>
function Machine(power) {
this._enabled = false;
this.enable = function() {
this._enabled = true;
};
this.disable = function() {
this._enabled = false;
};
}
function CoffeeMachine(power) {
Machine.apply(this, arguments);
var waterAmount = 0;
this.setWaterAmount = function(amount) {
waterAmount = amount;
};
function onReady() {
alert('Кофе готово!');
}
this.run = function() {
setTimeout(onReady, 1000);
};
}
</script>
</body>
</html>

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1-js/8-oop/5-functional-inheritance/1-coffeemachine-fix-run/task.md Normal file
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# Запускать только при включённой кофеварке
[importance 5]
В коде `CoffeeMachine` сделайте так, чтобы метод `run` выводил ошибку, если кофеварка выключена.
В итоге должен работать такой код:
```js
var coffeeMachine = new CoffeeMachine(10000);
coffeeMachine.run(); // ошибка, кофеварка выключена!
```
А вот так -- всё в порядке:
```js
var coffeeMachine = new CoffeeMachine(10000);
coffeeMachine.enable();
coffeeMachine.run(); // ...Кофе готов!
```
[edit src="source" task /]