Question

I have a large block of JavaScript that is wrapped in a try-catch block. It is rather complicated as it is loading stuff that was previously set in local storage. Because of that, I can’t really provide a code sample. However, I’m trying to learn if there is a good way of identifying “where” or “what” is ‘undefined’ in this code block.

Does anyone know of some solid JavaScript / debugging tools to help with this?

Thank you!

Answer 1

console.log(typeof variableName)

And you’ll see which one is undefined