Running jslint on saving JavaScript with vim

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autocmd BufWritePost,FileWritePost *.js !jslint <afile>
This will run jslint on your JavaScript files after you save them.

http://vimdoc.sourceforge.net/htmldoc/autocmd.html
http://vimdoc.sourceforge.net/htmldoc/autocmd.html#FileWritePost

You can add the command to your ~/.vimrc

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