Write a JavaScript function named testGrade() that is able to do the following tasks: • First, pop up a prompt dialog box to ask the user to enter a test mark. • Use a while-loop to verify the user input. If the input value is less than 0 or more than 100, a prompt dialog box will pop up to ask user re-enters the test mark. This prompt dialog will keep popping until the user enters a valid test mark. • If the mark entered by the user is more than 70, an alert dialog box will be prompted with the message “Pass!”, otherwise an alert dialog box will be prompted with the message “Fail!”.
Write a JavaScript function named testGrade() that is able to do the following tasks: • First, pop up a prompt dialog box to ask the user to enter a test mark. • Use a while-loop to verify the user input. If the input value is less than 0 or more than 100, a prompt dialog box will pop up to ask user re-enters the test mark. This prompt dialog will keep popping until the user enters a valid test mark. • If the mark entered by the user is more than 70, an alert dialog box will be prompted with the message “Pass!”, otherwise an alert dialog box will be prompted with the message “Fail!”.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Write a JavaScript function named testGrade() that is able to do the following tasks:
• First, pop up a prompt dialog box to ask the user to enter a test mark.
• Use a while-loop to verify the user input. If the input value is less than 0 or more than
100, a prompt dialog box will pop up to ask user re-enters the test mark. This prompt
dialog will keep popping until the user enters a valid test mark.
• If the mark entered by the user is more than 70, an alert dialog box will be prompted
with the message “Pass!”, otherwise an alert dialog box will be prompted with the
message “Fail!”.
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