transctions

src/transactions.ts

@@ -20,9 +20,12 @@ const transactions: Transaction[] = [
 // example:
 // filterIncomeTransactions(transactions); // => [["income", 1000], ["income", 1500], ["income", 700]]
 function filterIncomeTransactions(transactions: Transaction[]): Transaction[] {
+  const result = transactions.filter(
+    (transaction) => transaction[0] === "income"
+  );
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return result; // replace empty array with what you see is fit
 }
 
 // `filterExpenseTransactions` function that:
@@ -32,8 +35,11 @@ function filterIncomeTransactions(transactions: Transaction[]): Transaction[] {
 // filterExpenseTransactions(transactions); // => [["expense", 500], ["expense", 300]]
 function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
   // write your code here...
+  const result2 = transactions.filter(
+    (transactions) => transactions[0] === "expense"
+  );
 
-  return []; // replace empty array with what you see is fit
+  return result2; // replace empty array with what you see is fit
 }
 
 // `calculateTotalIncome` function that:
@@ -43,8 +49,11 @@ function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
 // calculateTotalIncome(transactions); // => 3200  (1000 + 1500 + 700)
 function calculateTotalIncome(transactions: Transaction[]): number {
   // write your code here...
+  const totalIncome = transactions
+    .filter((transaction) => transaction[0] === "income")
+    .reduce((sum, transaction) => sum + transaction[1], 0);
 
-  return -1; // replace -1 with what you see is fit
+  return totalIncome; // return the calculated total income
 }
 
 // `calculateTotalExpenses` function that:
@@ -54,8 +63,11 @@ function calculateTotalIncome(transactions: Transaction[]): number {
 // calculateTotalExpenses(transactions); // => 800  (500 + 300)
 function calculateTotalExpenses(transactions: Transaction[]): number {
   // write your code here...
+  const totalExpenses = transactions
+    .filter((transaction) => transaction[0] === "expense")
+    .reduce((sum, transaction) => sum + transaction[1], 0);
 
-  return -1; // replace -1 with what you see is fit
+  return totalExpenses; // replace -1 with what you see is fit
 }
 
 // `calculateNetTotal` function that:
@@ -65,8 +77,10 @@ function calculateTotalExpenses(transactions: Transaction[]): number {
 // calculateNetTotal(transactions); // => 2400  (3200 - 800)
 function calculateNetTotal(transactions: Transaction[]): number {
   // write your code here...
+  const totalomaines =
+    calculateTotalIncome(transactions) - calculateTotalExpenses(transactions);
 
-  return -1; // replace -1 with what you see is fit
+  return totalomaines; // return the calculated net total
 }
 
 // `filterSignificantTransactions` function that:
@@ -80,9 +94,18 @@ function filterSignificantTransactions(
   transactions: Transaction[],
   threshold: number
 ): Transaction[] {
+  return transactions.filter(([type, amount]) => amount >= threshold);
+
+
+
+const result = filterSignificantTransactions(transactions, 1000);
+console.log(result);
+// Output: [["income", 1000], ["income", 1500], ["expense", 2000]]
+
+
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return result // replace empty array with what you see is fit
 }
 
 export {