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In the script element, add the JavaScript code for getting the users entry while the entry amount isnt 999. This should provide for multiple entries

In the script element, add the JavaScript code for getting the users entry while the entry amount isnt 999. This should provide for multiple entries and conversions.

Add the JavaScript code for deriving the letter grade from the table above and displaying it in an alert dialog box.

If you havent already done so, add data validation to make sure the entry is a valid number from 0 through 100. If the entry is invalid, the application should just display the starting prompt dialog box. It doesnt need to display a special error message.

To derive the letter grade, you should use this table:

A 88-100 B 80-87 C 68-79 D 60-67 F < 60

This what I have so far and I'm stuck on the if else part

Show letter grade

This page is displayed after the JavaScript is executed

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