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script.js
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script.js
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// script.js
const expenseForm =
document.getElementById("expense-form");
const expenseList =
document.getElementById("expense-list");
const totalAmountElement =
document.getElementById("total-amount");
let expenses =
JSON.parse(localStorage.getItem("expenses")) || [];
function renderExpenses() {
expenseList.innerHTML = "";
let totalAmount = 0;
for (let i = 0; i < expenses.length; i++) {
const expense = expenses[i];
const expenseRow = document.createElement("tr");
expenseRow.innerHTML = `
<td>${expense.name}</td>
<td>$${expense.amount}</td>
<td class="delete-btn" data-id="${i}">Delete</td>
`;
expenseList.appendChild(expenseRow);
totalAmount += expense.amount;
}
totalAmountElement.textContent =
totalAmount.toFixed(2);
localStorage.setItem("expenses",
JSON.stringify(expenses));
}
function addExpense(event) {
event.preventDefault();
const expenseNameInput =
document.getElementById("expense-name");
const expenseAmountInput =
document.getElementById("expense-amount");
const expenseName =
expenseNameInput.value;
const expenseAmount =
parseFloat(expenseAmountInput.value);
expenseNameInput.value = "";
expenseAmountInput.value = "";
if (expenseName === "" || isNaN(expenseAmount)) {
alert("Please enter valid expense details.");
return;
}
const expense = {
name: expenseName,
amount: expenseAmount,
};
expenses.push(expense);
renderExpenses();
}
function deleteExpense(event) {
if (event.target.classList.contains("delete-btn")) {
const expenseIndex =
parseInt(event.target.getAttribute("data-id"));
expenses.splice(expenseIndex, 1);
renderExpenses();
}
}
expenseForm.addEventListener("submit", addExpense);
expenseList.addEventListener("click", deleteExpense);
renderExpenses();