looking for ``apply'' function

[Thomas Hafner <thomas@...>]

Hello,

is there some function which behaves according to the following
signature and semantics description?

function apply(f, a) {
-- f is a function. a is an array. Depending on the dimension of a,
-- apply shall return
--   f() -- for dimension == 0 (empty array) resp.
--   f(a[1]) -- for dimension == 1 resp.
--   f(a[1], a[2]) -- for dimension == 2 resp.
--   f(a[1], a[2], a[3]) -- for dimension == 3 resp.
--   ...
}

Regards
  Thomas