@verb #62:"islistof" this none this rxdo #60
@program #62:"islistof" this none this
":islistof(value,types) => whether value (a list) has each element being one of the given types"
{value, types} = args
for v in (value)
  if (!this:istype(v, types))
    return 0
  endif
endfor
return 1
"Last modified by Dax (#789) on Sun May 24 17:12:11 1998 EDT."
.