rest

rest(s)
      

Return all elements except the first one from the sequence s. If s is not a valid sequence, return false.

Rest is a generic function recognized by the language. A user-defined object can respond to the 'rest message and start behaving like a sequence. (See the documentation on first for an example).

Examples:

rest([1, 2, 3, 4, 5])
// [2, 3, 4, 5]
          
function ints(n) n:~ints(n + 1) // an infinite sequence of integers
let s = ints(0)

first(s)
// 0
first(rest(s))
// 1
      

Also see:

Core Module Index | Contents