This is a place to put any useful regular expressions I find. Feel free to submit pull requests with your own!
Match everything before the hour in an iso date:
s/^[0-9]{4}-[0-9]2-[0-9]2T//
e.g. string: '2015-12-22T20:05:00' matches '2015-12-22T' ignores everything not following
Match everything after the hour in an iso date:
s/[0-9]{2}:[0-9]{2}$//
e.g. string: '2015-12-22T20:05:00' matches '05:00' ignores everything before it
Find all instances where there is a comma without a trailing space.
,[^\s]
e.g. string: '_.findWhere(schema,{ 'name': action.sourceColumn } );' matches: ',{' useful for finding those pesky code style faux pas.