Does Array Exist??

[Mighty]

I have an ASP page which dynamically creates javascript arrays and puts them in a SCRIPT section in the head of an HTML document. However, depending on different options the list of arrays created will not always be the same.

I have other code which runs on that page and I will need to be able to tell which arrays exist. Is there any way I can check if a certain array exists?

Mighty

 

[theniteowl]

In Javscript you can test if it exists like this.
Assume array name is myArr.

if (document.myArr)
  alert('myArr exists');

Or in your ASP code you can set flags to indicate if an array exists or set values to say WHICH arrays were created.
Or you could create all the arrays but not populate them and then test them in Javascript for their length. But I think the first example above will work for you.


At my age I still learn something new every day, but I forget two others.