úÎÅ|Append a showable value to a  in a smart way. In  particular, do not  a , as this encloses it in  "quotes"6. So, depending on the type of the second parameter,  ' is equivalent to one of the following   x ^-^ y = x ++ y  x ^-^ y = x ++ show y  interpol-0.2.1 Text.Interpol^-^InterpolinterpolbaseGHC.BaseStringGHC.Showshow