task IM p2

src/transactions.ts

@@ -20,9 +20,7 @@ const transactions: Transaction[] = [
 // example:
 // filterIncomeTransactions(transactions); // => [["income", 1000], ["income", 1500], ["income", 700]]
 function filterIncomeTransactions(transactions: Transaction[]): Transaction[] {
-  // write your code here...
-
-  return []; // replace empty array with what you see is fit
+  return transactions.filter(([type]) => type == "income"); // replace empty array with what you see is fit
 }
 
 // `filterExpenseTransactions` function that:
@@ -33,7 +31,7 @@ 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(([type]) => type == "expense"); // replace empty array with what you see is fit
 }
 
 // `calculateTotalIncome` function that:
@@ -42,10 +40,14 @@ function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
 // example:
 // 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 total = 0;
+  const incomeArray = filterIncomeTransactions(transactions);
+  // incomeArray.forEach(([type, ]));
+  console.log("filtered array: ", incomeArray);
+  return 0; // replace -1 with what you see is fit
 }
+// i want to use forEach to exceed to all the values inside the array
+// i need a new variable to put the valus in it which is "results"
 
 // `calculateTotalExpenses` function that:
 // - Accepts a "transactions" parameter of type "Transaction[]".