Rebol Programming/header-rules

USAGE:

HEAD? series

DESCRIPTION:

Returns TRUE if a series is at its head.

HEAD? is an action value.

ARGUMENTS

  • series -- (Type: series port)

SOURCE CODE

head?: native[
  "Returns TRUE if a series is at its head." 
  series [series! port!]
]
This article is issued from Wikibooks. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.