extend("array")
slog(['A','B','C'])
//Direct
slog( array:join(" ", ['A','B','C']) )
//Partial
joinWithSlash = array:join("/")
slog( joinWithSlash(["var","log","messages"]) )
//Placeholder
joinPartial = array:join(_, ["One","Two","Three"])
slog( joinPartial(" + ") )