js的class寫法
```javascript
class DigitalWallet {
constructor(coinType) {
this.coinType = coinType;
this.balance = ;
}
deposit(amount) {
if (amount <= ) {
throw new Error("Invalid amount");
}
this.balance += amount;
}
withdraw(amount) {
if (amount <= || amount > this.balance) {
throw new Error("Insufficient balance");
}
this.balance -= amount;
}
getBalance() {
return this.balance;
}
}
const wallet = new DigitalWallet('Digital Yuan');
wallet.deposit();
wallet.withdraw();
```
`deposit`用于存款,`withdraw`用于取款,`getBalance`用于獲取當(dāng)前余額。
對(duì)于"文化、飾品、墊子"等非技術(shù)方面的內(nèi)容,將其與JavaScript中的Class結(jié)合起來,可能具體說明它們?nèi)绾无D(zhuǎn)化為編程語言中的概念或需求正在開發(fā)個(gè)在線商店,其中銷售文化產(chǎn)品、飾品和墊子為每種商品類型創(chuàng)建個(gè)類,在其上實(shí)現(xiàn)些通用的方法,如`getPrice()`,`getDescription()`等。