Solved expenditure-analysis.js

01-js/easy/expenditure-analysis.js

@@ -6,7 +6,27 @@
 */
 
 function calculateTotalSpentByCategory(transactions) {
-  return [];
+  const categoryTotals = {};
+
+  transactions.forEach(transaction => {
+    const { category, price } = transaction;
+
+    if (!categoryTotals[category]) {
+      categoryTotals[category] = price;
+    } else {
+      categoryTotals[category] += price;
+    }
+  });
+
+  // Convert the object to an array of objects with the required format
+  const result = Object.entries(categoryTotals).map(([category, totalSpent]) => ({
+    category,
+    totalSpent,
+  }));
+
+  return result;
 }
 
 module.exports = calculateTotalSpentByCategory;
+
+