JSLint

jslint.vim

    function! s:JSLint ()
        cclose
        let out = system('jslint', join(getline(1, '$'), "\n"))
        if out != "jslint: No problems found.\n"
            let errors = split(out, '[^\n]\n[^\n]\zs')
            let error_list = []
            for e in errors
                let thise = split(e, '|||')
                let error_list += [{'filename': expand("%"), 'lnum': thise[0], 'col': thise[1], 'text': thise[2]}]
            endfor
            call setqflist(error_list, 'r')
            copen
        else
            echo "No Problems."
        endif
    endfunction
    command! JSLint call <SID>JSLint()
    map <Leader>js :JSLint<CR>