unclip-last ( seq -- butlast last )
Factor handbook » The language » Collections » Sequence operations » Subsequences and slices

Prev:	unclip ( seq -- rest first )
Next:	cut ( seq n -- before after )

Vocabulary
sequences

Inputs

seq	a sequence

Outputs

butlast	a sequence
last	an object

Word description
Outputs a head sequence and the last element of seq; the head sequence consists of all elements of seq but the last.

Examples

USING: prettyprint sequences ; { 1 2 3 } unclip-last prefix .
{ 3 1 2 }

See also
unclip, unclip-slice, unclip-last-slice

Definition

USING: kernel sequences.private ;

IN: sequences

: unclip-last ( seq -- butlast last )
    [ but-last ] [ last-unsafe ] bi ;