Ah I see. Thanks. ___________________________
David Vaughan On 1 Nov 2011, at 01:10, Marshall Lochbaum <[email protected]> wrote: > Erase will work on an unboxed list of words, as well as boxed words. If you > give it a string, ;: will split it into words, and if you give it a box, ;: > will fail and because of the ::] it will fall back on ] as a default, which > does nothing before feeding the argument to 4!:55. > > Marshall > > On Mon, Oct 31, 2011 at 9:05 PM, David Vaughan <[email protected] >> wrote: > >> Can someone explain why the erase verb is 'more complex' than just 4!:55? >> >> erase >> [: 4!:55 ;: ::] >> >> They appear to do the same. I've never used :: before but I don't see what >> purpose it has here. I assume it's something to do with deleting multiple >> names or something. >> >> Thanks. >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
