New Perspectives on HTML5, CSS3, and JavaScript
New Perspectives on HTML5, CSS3, and JavaScript
6th Edition
ISBN: 9781305503922
Author: Patrick M. Carey
Publisher: Cengage Learning
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Chapter 9, Problem 7CP4
Program Plan Intro

To declare a global variable, timeLeft to store the number of seconds left to submit the ticket order and setting the initial value of the variable equal to the number of minutes left multiplied by 60 plus the number of seconds left in file ph_clock.js.

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You have been hired by PetPals Veterinary Clinic to modify its Bill Calculator application.  Upon reviewing the application, you notice that all of the controls have their default names. You also notice that the Calculate button’s code uses the properties of controls in the calculation statements.   The total amount a customer owes for all of the services performed during an office visit may contain a decimal place. What data type is best for a variable that will store this value?   a.  String     b.  Double     c.  Integer     d.  Fraction
. The O’Neill High School Performing Arts Center auditorium contains 20 rows (numbered 1through 20) with 40 seats each (numbered 1 through 40). Write an application that allows auser to continuously enter a row and seat request until a sentinel value is entered. If the rowor seat number is too high, issue an error message. Otherwise, determine whether the seat hasalready been reserved. If so, display an error message; if not, then charge the user $7.50 for aticket and display a running total of the user’s purchase. When the user enters a sentinel,display the number of seats taken and the number still available in the auditorium.
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