This is a javaScript front-end web development Cost Estimator – Design a program
ID: 3703660 • Letter: T
Question
This is a javaScript front-end web development
Cost Estimator –
Design a program with a function. The function should calculate the cost of painting rooms in the house. Assume each room can be painted by exactly one can of paint.
Function:
Will have parameters for number of rooms and cost per can
Calculates and returns the cost
Main Code (Inline):
Prompt the user for cost and number of rooms
Call the function, pass the 2 arguments and have the value displayed on the web page
MPG Estimator –
Design a program with a function. The function should calculate the MPG (mile-per-gallon) of the car.
Function:
Will have parameter for size of gas tank and miles drivable on a full tank (range)
Will calculate and return the MPG (Mile/gallon)
Main Code (Inline):
Prompt for size of tank (in gallons0 and miles drivable
Call function, passing 2 arguments (variables form previous step)
Display the returned value
Bill Estimator – Design a program with a function. The function should calculate the total bill of the user. Enter all rates (percentages) as .05 (for 5%)
Function:
Will have parameters for subtotal, tax rate, and tip rate
Will calculate and display to the user the total amount due using the following formula - subtotal * tax rate is tax due; tax due + subtotal is multiplied by tip rate, then add this result to tax due and subtotal for final total
Main Code (Inline):
Prompt for Subtotal, Tax Rate & Tip Rate
Call Function, Pass 3 Arguments
Display the returned value
Rubric
Declare the parameters needed to calculate the program
Using a function, calculate the required values for the program you selected
Prompt the user in the HTML document to input information to be used in the function
Call the function and send the arguments to be used
Display the returned value to the user in a concatenate statement
Explanation / Answer
1st Part:
<!DOCTYPE html>
<html>
<body>
<p>Cost of painting rooms in the house..</p>
<p id="demo"></p>
<script>
function myFunction(no_of_rooms, cost_per_can) {
total_cost = no_of_rooms * cost_per_can
return total_cost;
}
var rooms = prompt("Enter number of rooms", "0");
var costPerCan = prompt("Enter cost of one can", "0");
document.getElementById("demo").innerHTML = myFunction(rooms, costPerCan);
</script>
</body>
</html>
Part 2nd:
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