bankAccount.js

// BankAccount class
//  - Properties
//      - balance (defaults to 0 if not provided)
//      - accountHolder
//      - accountNumber
// - Methods
//   - deposit(amt) - increases balance by amt
//   - withdraw(amt) - descreases balance by amt.

class BankAccount {
  constructor(accountNumber, accountHolder, balance = 0) {
    this.accountHolder = accountHolder;
    this.accountNumber = accountNumber;
    this.balance = balance;
  }

  deposit(amt) {
    if (amt > 0) {
      this.balance += amt;
      console.log(`You deposited $${amt}.  New balance is: $${this.balance}`);
    } else {
      console.log("Can't deposit a negative amount");
    }
  }

  withdraw(amt) {
    if (amt > this.balance) {
      console.log("You can't withdraw that much!");
    } else {
      this.balance -= amt;
      console.log(`You withdrew $${amt}.  New balance is: $${this.balance}`);
    }
  }
}