Second step was to install the jslint.vim plugin itself. Here the main necessary hint was to add the command filetype plugin on to my ~/.vimrc file. In ~/.vimrc I also added these lines to be able to switch the highlighting of "complaints" off and on:
" jslint display errors off & on again map %0 :let g:JSLintHighlightErrorLine = 0<CR> map %1 :let g:JSLintHighlightErrorLine = 1<CR>
Instead of %1 and %0 you might want to choose some command that suits you better, I'm always at pains finding good command keys in vim that are not used for something else yet.
Now jslint was complaining about too much. The next step is to create a configuration file in ~/.jslintrc to give it some standard settings. Currently for me that's:
/*jslint browser: true, nomen: true, sloppy: true, vars: true, maxerr: 250 */ /*global jQuery, $ */