> A=: 1 : '0&(;@:u) :: empty' Can be expressed tacitly as B=: 0&(;@:) (:: empty) . In general, tacit adverbs are trains of adverbial clauses, so if you want to add another, you only need to wrap it in parens and tack it on the end.
Though your phrasing 0&(;@:) is very appealing; it seems to "beg for an argument" more than the vanilla formulation of (0&) (;@:) . -Dan -----Original Message----- From: programming-boun...@jsoftware.com [mailto:programming-boun...@jsoftware.com] On Behalf Of David Ward Lambert Sent: Monday, February 20, 2012 10:50 AM To: programming Subject: [Jprogramming] tacit adverb I had A=: 0&(;@:) u A y My u raises an error if y is bad, in which case EMPTY is a reasonable result. I'd prefer not checking y in each u. What is the tacit A=: 1 : '0&(;@:u) :: empty' ? Thanks, Dave. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
