Bind function to key and command
command! YoFunctionHere call s:YoFunctionHere()
nnoremap <silent> x :call <SID>FunctionHere()<CR>
function! s:FunctionHere()
endfunction
Call a function in insert mode
inoremap X <C-R>=script#myfunction()<CR>
inoremap <F2> <C-R>=MyVimFunc()?'':''<CR>
Checking plugins
if globpath(&rtp, "plugin/commentary.vim") != ""
Autoload
" autoload/hello.vim
if exists("g:hello_loaded") | finish | endif
let g:hello_loaded=1
function hello#method()
endfunction
" calling hello#method() will load only if autoload()
Misc
Version check
if version < 704
echom "requires vim >= 7.4"
endif