I know there is a Nanjing dialect of Jianghuai Mandarin but I have not been able to learn much about current usage in the city of Nanjing. For example, do many people in Nanjing today ordinarily begin words with an "l" sound where standard Mandarin has "n"? Do many people in Nanjing today use a very different vocabulary than say people in Beijing?
I am considering travel to Nanjing, and I wonder how well my Mandarin training will suit Nanjing and whether Nanjing usage will conflict with my training. (I speak French with something of a Montreal accent, which causes more amusement than misunderstanding in France.)
In any case, just about everywhere in China the younger the people, the closer the Mandarin they speak is to Standard Mandarin. You won't have a problem even though there will be a few differences.
– hippietrail Apr 01 '19 at 12:15