empty? ( seq -- ? ) - Factor Documentation

empty? ( seq -- ? )
Factor documentation > Factor handbook > The language > Collections > Sequence operations > Testing sequences

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bounds-check? ( n seq -- ? )

Vocabulary
sequences

Inputs and outputs

seq	a sequence
?	a boolean

Word description
Tests if the sequence has zero length.

Definition

USING: kernel ;

IN: sequences

: empty? ( seq -- ? ) length 0 = ; inline