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State Subclassing example for inheritance
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| import Account from "./Account.js"; | |
| export default class StealingAccount extends Account { | |
| constructor() { | |
| super(); | |
| this._stolen = 0; | |
| } | |
| getRealAvailable() { | |
| return this._balance; | |
| } | |
| getAvailable() { | |
| // Rounding to 1 decimal will obscure our stolen cents. | |
| return Math.round(super.getAvailable() / 10) * 10; | |
| } | |
| getStolenAmount() { | |
| return this._stolen; | |
| } | |
| static _states() { | |
| const states = super._states(); | |
| const openIndex = states.findIndex(state => state.name === "Open"); | |
| states[openIndex] = class Open extends states[openIndex] { | |
| deposit(amount) { | |
| super.deposit(amount - 0.01); | |
| this._stolen += 0.01; | |
| } | |
| }; | |
| return states; | |
| } | |
| } |
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