Bank Customer Management

Bank Customer Management

Add New Customer

Customer List

Name	Account Number	Balance	Actions

body { font-family: Arial, sans-serif; margin: 0; padding: 20px; background-color: #f5f5f5; } .container { max-width: 1000px; margin: 0 auto; background-color: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); } h1, h2 { color: #2c3e50; } .form-section { margin-bottom: 30px; padding: 20px; background-color: #f9f9f9; border-radius: 5px; } .form-group { margin-bottom: 15px; } label { display: block; margin-bottom: 5px; font-weight: bold; } input { width: 100%; padding: 8px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box; } button { background-color: #3498db; color: white; border: none; padding: 10px 15px; border-radius: 4px; cursor: pointer; } button:hover { background-color: #2980b9; } table { width: 100%; border-collapse: collapse; margin-top: 20px; } th, td { padding: 12px; text-align: left; border-bottom: 1px solid #ddd; } th { background-color: #3498db; color: white; } tr:hover { background-color: #f5f5f5; } .action-btn { padding: 5px 10px; margin-right: 5px; font-size: 14px; } .edit-btn { background-color: #f39c12; } .delete-btn { background-color: #e74c3c; } class Customer { constructor(name, accountNumber, balance) { this.name = name; this.accountNumber = accountNumber; this.balance = balance; } } class Bank { constructor() { this.customers = []; } addCustomer(customer) { this.customers.push(customer); this.saveToLocalStorage(); } deleteCustomer(accountNumber) { this.customers = this.customers.filter( customer => customer.accountNumber !== accountNumber ); this.saveToLocalStorage(); } updateCustomer(accountNumber, updatedCustomer) { const index = this.customers.findIndex( customer => customer.accountNumber === accountNumber ); if (index !== -1) { this.customers[index] = updatedCustomer; this.saveToLocalStorage(); } } saveToLocalStorage() { localStorage.setItem('bankCustomers', JSON.stringify(this.customers)); } loadFromLocalStorage() { const storedCustomers = localStorage.getItem('bankCustomers'); if (storedCustomers) { this.customers = JSON.parse(storedCustomers); } } } const bank = new Bank(); bank.loadFromLocalStorage(); document.addEventListener('DOMContentLoaded', () => { const customerForm = document.getElementById('customerForm'); const customerTableBody = document.getElementById('customerTableBody'); function renderCustomers() { customerTableBody.innerHTML = ''; bank.customers.forEach(customer => { const row = document.createElement('tr'); row.innerHTML = ` ${customer.name} ${customer.accountNumber} $${customer.balance.toFixed(2)} `; customerTableBody.appendChild(row); }); // Add event listeners to delete buttons document.querySelectorAll('.delete-btn').forEach(btn => { btn.addEventListener('click', (e) => { const accountNumber = e.target.getAttribute('data-account'); bank.deleteCustomer(accountNumber); renderCustomers(); }); }); // Add event listeners to edit buttons document.querySelectorAll('.edit-btn').forEach(btn => { btn.addEventListener('click', (e) => { const accountNumber = e.target.getAttribute('data-account'); const customer = bank.customers.find( c => c.accountNumber === accountNumber ); if (customer) { document.getElementById('name').value = customer.name; document.getElementById('accountNumber').value = customer.accountNumber; document.getElementById('balance').value = customer.balance; } }); }); } customerForm.addEventListener('submit', (e) => { e.preventDefault(); const name = document.getElementById('name').value; const accountNumber = document.getElementById('accountNumber').value; const balance = parseFloat(document.getElementById('balance').value); const existingCustomer = bank.customers.find( customer => customer.accountNumber === accountNumber ); if (existingCustomer) { // Update existing customer const updatedCustomer = new Customer(name, accountNumber, balance); bank.updateCustomer(accountNumber, updatedCustomer); } else { // Add new customer const newCustomer = new Customer(name, accountNumber, balance); bank.addCustomer(newCustomer); } renderCustomers(); customerForm.reset(); }); renderCustomers(); });