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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Useful Array Methods

Phil Sta
Phil Sta
3,805 Points
Posted by Phil Sta
Phil Sta
3,805 Points

None of my Array items are ever in stock - please help

Hi,

Would someone be so kind and have a look at my code below? Whatever I put in the prompt, the output is:

xxx is not in stock at the moment. Sorry

I just cannot figure out where the bug is.

Thanks a lot in advance!

var inStock = [ 'apples', 'eggs', 'milk', 'cookies', 'cheese', 'bread',
'lettuce', 'carrot', 'broccoli', 'pizza', 'potato', 'crackers', 'onion',
'tofu', 'frozen dinner', 'cucumber']; var search;

function print(message) {
  document.write(message);
}

while (true) {
    search = prompt("Search for a product in our store. Type 'list' to show all products. Type 'quit' to exit.");
    search = search.toLowerCase();
    if (search === 'quit') {
        break;
    } else if (search === 'list') {
        print ( inStock.join(', ') );   
    } else if ( inStock.indexOf(search) > -1 ) {
        print( "Yes, we have " + search + " in stock." );
    }   else { 
        print ( search + " is not in stock at the moment. Sorry");
        }
    }
}

3 Answers

Stephen Chamroeun
Stephen Chamroeun
7,095 Points
Stephen Chamroeun
Stephen Chamroeun
7,095 Points

For your code below, it should be changed from this....

while (true) {
    search = prompt("Search for a product in our store. Type 'list' to show all products. Type 'quit' to exit.");
    search = search.toLowerCase();
    if (search === 'quit') {
        break;
    } else if (search === 'list') {
        print ( inStock.join(', ') );   
    } else if ( inStock.indexOf(search) > -1 ) {
        print( "Yes, we have " + search + " in stock." );
    }   else { 
        print ( search + " is not in stock at the moment. Sorry");
        }
    }
}

to this.

while (true) {
    search = prompt("Search for a product in our store. Type 'list' to show all products. Type 'quit' to exit.");
    search = search.toLowerCase();
    if ( search === 'quit' ) {
       break;
    } else if (search === 'list') {
       print( inStock.join(', '));
    } else {
       if ( inStock.indexOf(search) > -1 ) {
          print( "Yes, we have " + search + " in stock." );
       } else {
          print ( search + " is not in stock at the moment. Sorry");
       }
    }
}

The error is in writing another else if statement. After the initial else if statement you made, it should be followed by an else statement. And then it should be followed by another if conditional statement if the user types in a specific item. I hope that helped!

asd asdf
PLUS
asd asdf
Courses Plus Student 298 Points
asd asdf
asd asdf
Courses Plus Student 298 Points

You're finishing with 2 else statements which doesn't work. You need to turn the first one into an else if

Phil Sta
Phil Sta
3,805 Points
Phil Sta
Phil Sta
3,805 Points

Hi ,

Thanks for your help -it still displays that no item is ever in stock 

var inStock = [ 'apples', 'eggs', 'milk', 'cookies', 'cheese', 'bread',
'lettuce', 'carrot', 'broccoli', 'pizza', 'potato', 'crackers', 'onion',
'tofu', 'frozen dinner', 'cucumber']; var search;

function print(message) {
  document.write(message);
}

while (true) {
    search = prompt("Search for a product in our store. Type 'list' to show all products. Type 'quit' to exit.");
    search = search.toLowerCase();
    if (search === 'quit') {
        break;
    } else if (search === 'list') {
        print ( inStock.join(', ') );   
    } else if ( inStock.indexOf(search) > -1 ) {
        print( "Yes, we have " + search + " in stock." );
    }   else { 
        print ( search + " is not in stock at the moment. Sorry");
        }
    }
}

Any ideas?

Thanks!!