Emacs: viewing space/tab symbols

Question

In Notepad++ there is an amazingly handy button I can press to see symbols where spaces, tabs, and newlines are so I can see which whitespaces are caused by spaces and which are caused by tabs. Can I do this in emacs? If not, how does one generally go about testing in emacs whether a file you are reading separates strings by spaces or tabs?

Answer 1

The WhiteSpace package does this. It will show tab, space and newline combinations in your code.

Some alternatives exist.