Why doesn't my code see the inner set of a 2 dim array?

It objects that seats[l].length is not an object.

[Baruch Menachem]

I have a two dimensional array called seats. (This is being sort of copies out of a book. The book has the solution, but my solution looks identical to me, except for the order)

the outer loop is a while loop, with l as the counter, the inner loop looks like "

  
 var done=false;
    var l=0;
 
   //search through all seats for availabiltiy
   while (! done && l<seats.length)
     {
     for (var il=0; il < seats[l].length; il++)

Anyway, I get an error that seats[;].length is not an object, an I can't see the error here

Thanks

[Fotiman]

You while loop will continue until both done == true AND l < seats.length. Therefore, if you reach the end of the seats array and you've not set done = true, then it will continue to loop, causing an out of index error. Not sure if that's the problem you're seeing, but it certainly looks suspect to me.

[Baruch Menachem]

I thought && required both to be true, not just one. Therefore, when you reach the end of the index, it should hit false and go to the next row in the array...?

[daveVk]

Try

while ( (! done) && ( l<seats.length ) )

use brackets liberally to make intent clear

make sure l is initialized and incremented

[Baruch Menachem]

I think I found the issue. You were right, l's increment is outside the loop

[Fotiman]

I'm sorry, you were right. Not sure what I was thinking. :)