hd

func hd(ls : List+String) -> Entity
  return ls(1)

Returns the first element or character of the given list or string. For example:

  hd([1]) = 1
  hd(`two') = `t'
  hd([]) = Undefined

Synonymous to: first
See also: all_but_last, last, rest, tl

This is Slim documentation as snarfed on 27 May 1999 by dB.