Raghad Butaiban

src/transactions.ts

@@ -22,7 +22,7 @@ const transactions: Transaction[] = [
 function filterIncomeTransactions(transactions: Transaction[]): Transaction[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return transactions.filter((trans) => trans.includes("income")); // replace empty array with what you see is fit
 }
 
 // `filterExpenseTransactions` function that:
@@ -33,7 +33,7 @@ function filterIncomeTransactions(transactions: Transaction[]): Transaction[] {
 function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
   // write your code here...
 
-  return []; // replace empty array with what you see is fit
+  return transactions.filter((trans) => trans.includes("expense")); // replace empty array with what you see is fit
 }
 
 // `calculateTotalIncome` function that:
@@ -43,8 +43,12 @@ function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
 // calculateTotalIncome(transactions); // => 3200  (1000 + 1500 + 700)
 function calculateTotalIncome(transactions: Transaction[]): number {
   // write your code here...
-
-  return -1; // replace -1 with what you see is fit
+  let IncomeTrans: Transaction[] = filterIncomeTransactions(transactions);
+  let sum = IncomeTrans? IncomeTrans.reduce((x, trans) => {
+    return x + trans[1];
+  }, 0)
+  : 0;
+  return sum; // replace -1 with what you see is fit
 }
 
 // `calculateTotalExpenses` function that:
@@ -54,8 +58,12 @@ function calculateTotalIncome(transactions: Transaction[]): number {
 // calculateTotalExpenses(transactions); // => 800  (500 + 300)
 function calculateTotalExpenses(transactions: Transaction[]): number {
   // write your code here...
-
-  return -1; // replace -1 with what you see is fit
+  let ExpTrans: Transaction[] = filterExpenseTransactions(transactions);
+  let sum = ExpTrans? ExpTrans.reduce((x, trans) => {
+    return x + trans[1];
+  }, 0)
+  : 0;
+  return sum; // replace -1 with what you see is fit
 }
 
 // `calculateNetTotal` function that:
@@ -65,8 +73,9 @@ function calculateTotalExpenses(transactions: Transaction[]): number {
 // calculateNetTotal(transactions); // => 2400  (3200 - 800)
 function calculateNetTotal(transactions: Transaction[]): number {
   // write your code here...
-
-  return -1; // replace -1 with what you see is fit
+    return calculateTotalIncome(transactions) - calculateTotalExpenses(transactions);
+
+  // return total;  // replace -1 with what you see is fit
 }
 
 // `filterSignificantTransactions` function that:
@@ -81,10 +90,15 @@ function filterSignificantTransactions(
   threshold: number
 ): Transaction[] {
   // write your code here...
+
+  let transFiltered: Transaction[] = transactions.filter((trans) => trans[1] >= threshold);
+    return transFiltered;
 
-  return []; // replace empty array with what you see is fit
+  // return []; // replace empty array with what you see is fit
 }
 
+
+
 export {
   Transaction,
   filterIncomeTransactions,