Build a Simple ATM with JavaScript Using For Loop |21xrx.com

Build a Simple ATM with JavaScript Using For Loop

2023-06-18 07:16:23 深夜i -- --

JavaScript

ATM, for循环

Using JavaScript as a programming language, it is possible to build a simple ATM that can handle withdrawals and deposits. One advantage of building an ATM using this language is that it is relatively easy to learn, which makes the whole process easier and faster.

The first step to creating a JavaScript-based ATM is to set up the HTML file, which will provide the necessary interface for the users. This can be done by creating a simple form where users can input their account number, the amount they want to withdraw or deposit, and their desired transaction option.

Next, the script file needed to be linked to the HTML file. This will provide the necessary JavaScript functions that will enable the ATM to work properly. To withdraw money, a for loop can be used to iterate through the account object array to identify the customer's account.

For example, the following code shows how to use for loop to iterate through the account object array and perform a withdrawal:


for (var i=0; i
  if (accounts[i].accountNumber == inputAccount) {
    if (accounts[i].balance >= inputWithdraw) {
      accounts[i].balance = accounts[i].balance - inputWithdraw;
      message = "Withdrawal successful. Your balance is now: $" + accounts[i].balance;
    } else
      message = "Insufficient funds in your account";
    
  }
}

This code checks if the customer's account number matches with one of the user accounts. If the account is valid and has sufficient funds, the script performs the withdrawal process, reducing the account balance by the specified amount. If the account doesn't have enough funds, the withdrawal request is denied.

In conclusion, this example shows how easy it is to create a simple ATM machine using JavaScript, and how using for loop can simplify this task to a great extent. By following some basic guidelines and using this simple code, you can build your own basic ATM using JavaScript and HTML, which can serve as a starting point for more complex projects.

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