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JavaScript Homework Help: How do i fix my code so that it loops properly and give an error?

  • I need to set up a loop/debugging tool that allows the user to try again if they input the wrong data as well as puts out an alert letting them know they input invalid data. I'm a little stuck and need some help with my code! Here's the assignment details: 1. Use looping, and debugging tools as needed, to give the user an error message that is appropriate and the opportunity to enter the bread choice until they enter a valid bread choice. 2. Use looping, and debugging tools as needed, to give the user an error message that is appropriate and the opportunity to enter the filling choice until they enter a valid filling choice. 3. Once a valid bread choice and a valid filling choice have been entered display the message about what sandwich you will be ordering for them. & my code so far: <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Assignment 7: Stephanie Hussar</title> <script type="text/javascript"> if (breadArray[breadChoice] && fillingArray[fillingChoice]) { alert("I will order you a  " +fillingArray[fillingChoice] +"  on  " +breadArray[breadChoice] +"  sandwich for lunch"); } else if(isNaN(breadChoice) || isNaN(fillingChoice)) { alert("The value you entered is not a number."); } else { alert("Sorry. You did not enter a correct numeric value, please try again!"); } </script> </head> <body> <script type="text/javascript"> var breadArray = new Array ("white","wheat","rye","wrap"); var fillingArray = new Array ("ham","turkey","egg salad","beef","peanut butter"); var breadChoice; var fillingChoice; var counter = 0; do { breadChoice = prompt("Bread choices are: 1 for White, 2 for Wheat, 3 for Rye, or 4 for a Wrap. Please select the type of bread for you sandwich using a number from 1 to 4")-1; counter ++; } while(breadChoice >= 4 || breadChoice < 1); do { fillingChoice = prompt("Filling choices are: 1 for ham, 2 for turkey, 3 egg salad, 4 beef, or 5 peanut butter. Please select the type of filling for your sandwich using a number from 1 to 5")-1; counter ++; } while(fillingChoice >= 5 || breadChoice < 1); </script> </body>

  • Answer:

    Here's an example. http://pastebin.com/VqwjLp8u Use the array literal instead of new. var myArray = ["element0", "element1"]; Instead of. var myArray = new Array("element0", "element1"); Anywho, hope this helps. - Dominic

dolceand... at Yahoo! Answers Visit the source

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