Is there any diff between these opions in behaviour?

Question

Actually I set these options in my vimrc:

set tabstop=4
set expandtab

But everywhere I saw (esp in vim.wikia) they set different tab option as mine. like:

set shiftwidth=4
set softtabstop=4
set softtabstop=4

And I am confused, Are they same in function? Is there any difference between these tab options in vim behaviour? Please let me know how I can set my tab options comfortably.

Answer 1

This article may help you clear the idea.

set softtabstop=4 will makes backspace 4 spaces as a tab.