JavaScript Program for Calculating Sales Tax and Total Price of an Item

The objective of this JavaScript program is to calculate the sales tax and total price of an item. We will assume a sales tax rate of 8% and prompt the user to input the cost of the item. We will then convert this input to a numeric format using parseFloat.

To begin, we will declare a variable named “cost” to store the inputted cost of the item. We will use the prompt function to ask the user for the input and parseFloat to convert the input to a numeric value.

“`
let cost = parseFloat(prompt(“Enter the cost of the item:”));
“`

Next, we will calculate the sales tax amount using the formula: salesTax = cost * 0.08. We will declare a variable named “salesTax” and assign it the value obtained from the calculation.

“`
let salesTax = cost * 0.08;
“`

After that, we will calculate the total cost of the item by adding the original cost and the sales tax amount. We will declare a variable named “totalCost” and assign it the sum of “cost” and “salesTax”.

“`
let totalCost = cost + salesTax;
“`

Now, we will output the item cost, tax amount, and total cost in the form of a receipt. We will use document.write to display the output.

“`
document.write(“

Receipt

“);
document.write(“Item Cost: $” + cost.toFixed(2) + “
“);
document.write(“Tax Amount: $” + salesTax.toFixed(2) + “
“);
document.write(“Total Cost: $” + totalCost.toFixed(2) + “
“);
“`

Finally, to personalize the page, we can add our photo to the top of the page. To achieve this, we will include a line of code that displays an image tag with the path to our photo.

“`
document.write(““);
“`

To make the program accessible on the webpage, we need to FTP or publish the file to the webpage.pace.edu server. Once published, we can submit the HTTP link to the assignment on Blackboard for evaluation.

By following this program, we can calculate the sales tax and total price of an item in JavaScript and personalize the page with our photo on top.