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Second Task is Done #14

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46 changes: 34 additions & 12 deletions src/transactions.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,20 +21,24 @@ const transactions: Transaction[] = [
// 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
const newFilterIncomeTransactions = transactions.filter(
(transaction) => transaction[0] === "income"
);
return newFilterIncomeTransactions; // replace empty array with what you see is fit
}

console.log(filterIncomeTransactions(transactions));
// `filterExpenseTransactions` function that:
// - Accepts a "transactions" parameter of type "Transaction[]".
// - Return a new array containing only the expense transactions.
// example:
// filterExpenseTransactions(transactions); // => [["expense", 500], ["expense", 300]]
function filterExpenseTransactions(transactions: Transaction[]): Transaction[] {
// write your code here...

return []; // replace empty array with what you see is fit
const newFilterExpenseTransactions = transactions.filter(
(transaction) => transaction[0] === "expense"
);
return newFilterExpenseTransactions; // replace empty array with what you see is fit
}
console.log(filterExpenseTransactions(transactions));

// `calculateTotalIncome` function that:
// - Accepts a "transactions" parameter of type "Transaction[]".
Expand All @@ -43,9 +47,12 @@ 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
const newTotalIncome = transactions
.filter((transaction) => transaction[0] === "income")
.reduce((total, transaction) => total + transaction[1], 0);
return newTotalIncome; // replace -1 with what you see is fit
}
console.log(calculateTotalIncome(transactions));

// `calculateTotalExpenses` function that:
// - Accepts a "transactions" parameter of type "Transaction[]".
Expand All @@ -54,9 +61,13 @@ function calculateTotalIncome(transactions: Transaction[]): number {
// calculateTotalExpenses(transactions); // => 800 (500 + 300)
function calculateTotalExpenses(transactions: Transaction[]): number {
// write your code here...
const newCalculateExpense = transactions
.filter((transaction) => transaction[0] === "expense")
.reduce((total, transacion) => total + transacion[1], 0);

return -1; // replace -1 with what you see is fit
return newCalculateExpense; // replace -1 with what you see is fit
}
console.log(calculateTotalExpenses(transactions));

// `calculateNetTotal` function that:
// - Accepts a "transactions" parameter of type "Transaction[]".
Expand All @@ -65,10 +76,17 @@ function calculateTotalExpenses(transactions: Transaction[]): number {
// calculateNetTotal(transactions); // => 2400 (3200 - 800)
function calculateNetTotal(transactions: Transaction[]): number {
// write your code here...
const newTotalIncome = transactions
.filter((transaction) => transaction[0] === "income")
.reduce((total, transaction) => total + transaction[1], 0);
const newCalculateExpense = transactions
.filter((transaction) => transaction[0] === "expense")
.reduce((total, transacion) => total + transacion[1], 0);
const netTotal = newTotalIncome - newCalculateExpense;

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

console.log(calculateNetTotal(transactions));
// `filterSignificantTransactions` function that:
// - Accepts 2 parameters:
// - a "transactions" parameter of type "Transaction[]".
Expand All @@ -81,9 +99,13 @@ function filterSignificantTransactions(
threshold: number
): Transaction[] {
// write your code here...
const newFilter = transactions.filter(
(transaction) => transaction[1] >= threshold
);

return []; // replace empty array with what you see is fit
return newFilter; // replace empty array with what you see is fit
}
console.log(filterSignificantTransactions(transactions, 1000));

export {
Transaction,
Expand Down