i know that lil has fuse, but how would i do something like `{x,"\n",y}/("hello";"world";"etc")` in k? i have a list of strings of arbitrary length and i want to combine them all into a single string by a delimiter. is there a way to do that?
To use K terminology, fuse is a dyad which takes a delimiter as its left argument:
"\n" fuse ("hello","world","etc")
"hello\nworld\netc"
":ANYTHING:" fuse ("hello","world","etc")
"hello:ANYTHING:world:ANYTHING:etc"
And you can handle even fancier cases with a recursive "format":
(list "ITEM<%s>") format ("hello","world","etc")
("ITEM<hello>","ITEM<world>","ITEM<etc>")
("\n","ITEM<%s>") format ("hello","world","etc")
"ITEM<hello>\nITEM<world>\nITEM<etc>"