mustafa

finance-tracker/app.js

@@ -1,3 +1,16 @@
-// This is the entrypoint for your application.
-// node app.js
+const { transactions } = require('./data');
+const {
+  getTotalIncome,
+  getTotalExpenses,
+  getBalance
+} = require('./finance');
 
+console.log('PERSONAL FINANCE TRACKER');
+
+const income = getTotalIncome(transactions);
+const expenses = getTotalExpenses(transactions);
+const balance = getBalance(transactions);
+
+console.log('Total Income:', income);
+console.log('Total Expenses:', expenses);
+console.log('Current Balance:', balance);

finance-tracker/data.js

@@ -1,2 +1,46 @@
-// Place here the transaction data array. Use it in your application as needed.
-const transactions = [];
+const transactions = [
+  {
+    id: 1,
+    type: 'income',
+    category: 'salary',
+    amount: 3000,
+    description: 'Salary',
+    date: '2026-02-01'
+  },
+  {
+    id: 2,
+    type: 'expense',
+    category: 'housing',
+    amount: 1200,
+    description: 'Rent',
+    date: '2026-02-02'
+  },
+  {
+    id: 3,
+    type: 'expense',
+    category: 'food',
+    amount: 300,
+    description: 'Groceries',
+    date: '2026-02-03'
+  },
+  {
+    id: 4,
+    type: 'income',
+    category: 'side-income',
+    amount: 500,
+    description: 'Freelance',
+    date: '2026-02-04'
+  },
+  {
+    id: 5,
+    type: 'expense',
+    category: 'bills',
+    amount: 150,
+    description: 'Utilities',
+    date: '2026-02-05'
+  }
+];
+
+module.exports = {
+  transactions
+};

finance-tracker/finance.js

@@ -1,27 +1,33 @@
-function addTransaction(transaction) {
-  // TODO: Implement this function
-}
+function getTotalIncome(transactions) {
+  let total = 0;
 
-function getTotalIncome() {
-  // TODO: Implement this function
-}
+  for (const transaction of transactions) {
+    if (transaction.type === 'income') {
+      total += transaction.amount;
+    }
+  }
 
-function getTotalExpenses() {
-  // TODO: Implement this function
+  return total;
 }
 
-function getBalance() {
-  // TODO: Implement this function
-}
+function getTotalExpenses(transactions) {
+  let total = 0;
+
+  for (const transaction of transactions) {
+    if (transaction.type === 'expense') {
+      total += transaction.amount;
+    }
+  }
 
-function getTransactionsByCategory(category) {
-  // TODO: Implement this function
+  return total;
 }
 
-function getLargestExpense() {
-  // TODO: Implement this function
+function getBalance(transactions) {
+  return getTotalIncome(transactions) - getTotalExpenses(transactions);
 }
 
-function printAllTransactions() {
-  // TODO: Implement this function
-}
+module.exports = {
+  getTotalIncome,
+  getTotalExpenses,
+  getBalance
+};