none? ( ... seq quot: ( ... elt -- ... ? ) -- ... ? )
Factor handbook » The language » Collections » Sequence operations » Sequence combinators

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Vocabulary
sequences

Inputs

seq	a sequence
quot	a quotation with stack effect ( ... elt -- ... ? )

Outputs

?

a boolean

Word description
Tests if the sequence does not contain any element satisfying the predicate, by applying the predicate to each element in turn until a true value is found. If the sequence is empty or if the end of the sequence is reached, outputs t.

See also
any?, all?

Definition

USING: kernel ;

IN: sequences

: none? ( ... seq quot: ( ... elt -- ... ? ) -- ... ? )
    any? not ; inline