How to check if any cell is empty in a html table ?

How to check if any cell is empty in a html table ?

Hi All,

I have a html table where I am creating rows on Insert button click. row might be have 5-6 columns or so on. Now before save I want to check if any cell is empty if any cell empty, show alert message.
Actually should not allow user to save if any cell is empty in html table.

Thanks,