Difference between "行くんスカ?" and "行くんですか"


I think both of them have a similar meaning but the use of んスカ is puzzling,
like what is the literal translation of it?




Sometimes です can be abbreviated to す or っす, as you seem to have guessed. There
is an answer here about that:

[What does っす at the end of a sentence
mean?](https://japanese.stackexchange.com/questions/36/what-
does-%E3%81%A3%E3%81%99-at-the-end-of-a-sentence-mean)

