Use my code and creating small reusable functions. The small functions will be combined to solve a larger program.

Each function is like a little tool that does only one job. Combined together, the little functions can do big things.

1. Finally, call the function to execute it.
2. The program will just template literals to construct the output to the console:
   1. The number of items purchased,
   2. The discount amount
   3. The subtotal,
   4. The sales tax amount
   5. The final total cost.

This is my code "use strict";

// Function to add item prices using an array and a loop function addItemPrices() { // Inputs

// Youie purchased 30 items, all the 30 items have their prices stored in the array called "prices" const prices = [6.67, 1.38, 5.77, 20.65, 4.97, 6.40, 7.34, 4.61, 9.81, 8.85, 3.66, 3.38, 6.68, 6.32, 4.55, 6.55, 70.85, 4.01, 0.81, 8.45, 2.77, 4.38, 5.25, 6.47, 40.22, 6.06, 7.98, 4.02, 2.81, 28.33];

// discount let discount;

// Total price of all the 30 items in the "prices" array before discount let totalPriceOfItemsBefDisc = 0;

// 12% sales tax in value const salesTax = 0.12;

// Total number of items purchased by youie let totalItemsPurchased;

// Amount of discount that youie receives let discountReceived;

// Subtotal cost of all the 30 items after discount let totalCostAfterDisc;

// sales tax amount youie pays let salesTaxPayable;

// Total amount Youie must pay let totalAmountPayable;

// Total number of items purchased by youie // The length property sets or returns the number of elements in an array. totalItemsPurchased = prices.length;

// Total price of all the 30 items in the "prices" array before discount using for loop for (let i = 0; i < prices.length; i++ ) { totalPriceOfItemsBefDisc += prices[i]; }

// console.log(totalPriceOfItemsBefDisc);

if (totalPriceOfItemsBefDisc > 250) { // 20% discount discount = 0.20;

// Amount of discount that youie receives discountReceived = 0.20 * totalPriceOfItemsBefDisc;

// Subtotal cost of all the 30 items after discount totalCostAfterDisc = totalPriceOfItemsBefDisc - discountReceived;

// sales tax payable after discount salesTaxPayable = 0.12 * totalCostAfterDisc;

//Total amount Youie must pay totalAmountPayable = totalCostAfterDisc + salesTaxPayable;

}

// Printing Outputs in console

// The ceil() method rounds a number UPWARDS to the nearest integer, and returns the result.

console.log('Number of items purchased' , Math.ceil(totalItemsPurchased)); console.log('Youie\'s discount amount',Math.ceil(discountReceived)); console.log('The subtotal amount', Math.ceil(totalCostAfterDisc)); console.log('The sales tax amount',salesTaxPayable.toFixed(2) ); console.log('Total price payable', totalAmountPayable.toFixed(2));

}

// calling the function addItemPrices();