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Hasan Alwayel -Lulwa Alroomi #7

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Hasan Alwayel -Lulwa Alroomi #7

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25 changes: 19 additions & 6 deletions src/transactions.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,10 @@ const transactions: Transaction[] = [
// filterIncomeTransactions(transactions); // => [["income", 1000], ["income", 1500], ["income", 700]]
function filterIncomeTransactions(transactions: Transaction[]): Transaction[] {
// write your code here...
return transactions.filter(x => x[0] === "income");


return []; // replace empty array with what you see is fit
// replace empty array with what you see is fit
}

// `filterExpenseTransactions` function that:
Expand All @@ -33,7 +35,7 @@ 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(x => x[0] === "expense");; // replace empty array with what you see is fit
}

// `calculateTotalIncome` function that:
Expand All @@ -43,8 +45,10 @@ function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
// calculateTotalIncome(transactions); // => 3200 (1000 + 1500 + 700)
function calculateTotalIncome(transactions: Transaction[]): number {
// write your code here...
const incomeOnly = transactions.filter(x => x[0] === "income");
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@taqillion taqillion Mar 11, 2025

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Why not reuse the functions you already defined?

const totalIncome = incomeOnly.reduce((total,transaction) => total+transaction[1],0);

return -1; // replace -1 with what you see is fit
return totalIncome; // replace -1 with what you see is fit
}

// `calculateTotalExpenses` function that:
Expand All @@ -54,8 +58,10 @@ function calculateTotalIncome(transactions: Transaction[]): number {
// calculateTotalExpenses(transactions); // => 800 (500 + 300)
function calculateTotalExpenses(transactions: Transaction[]): number {
// write your code here...
const expenseOnly = transactions.filter(x => x[0] === "expense");
const totalexpense = expenseOnly.reduce((total,transaction) => total+transaction[1],0);

return -1; // replace -1 with what you see is fit
return totalexpense; // replace -1 with what you see is fit
}

// `calculateNetTotal` function that:
Expand All @@ -65,8 +71,14 @@ function calculateTotalExpenses(transactions: Transaction[]): number {
// calculateNetTotal(transactions); // => 2400 (3200 - 800)
function calculateNetTotal(transactions: Transaction[]): number {
// write your code here...
const incomeOnly = transactions.filter(x => x[0] === "income");
const totalIncome = incomeOnly.reduce((total,transaction) => total+transaction[1],0);

return -1; // replace -1 with what you see is fit
const expenseOnly = transactions.filter(x => x[0] === "expense");
const totalExpense = expenseOnly.reduce((total,transaction) => total+transaction[1],0);


return (totalIncome - totalExpense); // replace -1 with what you see is fit
}

// `filterSignificantTransactions` function that:
Expand All @@ -82,7 +94,8 @@ function filterSignificantTransactions(
): Transaction[] {
// write your code here...

return []; // replace empty array with what you see is fit

return transactions.filter(x => x[1] >= threshold); // replace empty array with what you see is fit
}

export {
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