Switch statements in Prolog

Question

In Prolog predicates, I often write repetitive conditional statements like this one, but I wish they could be written more concisely:

output(Lang, Type, Outp         


        

Answer 1

It seems that multiple clauses are made for this use case and also quite concise.

output(javascript, Type, ["javascript", Type]).
output(ruby, Type, ["def", Type]).
output(java, Type, [Type]).