Hot tip for vim users: highlight spaces at end of lines

Hi all, 

Quick tip I’d like to share - every now and then I accidentally add a space on the end of lines of 
code. 

You can highlight this occurring in vim by adding the following to your .vimrc file:

highlight ExtraWhitespace ctermbg=red guibg=red
match ExtraWhitespace /\s\+$/

Probably most vi/vim users know this, but to remove newlines, you can use the following:

:%s/ \+$//g

Chris