sift-keys ( assoc -- assoc' )
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Vocabulary
assocs

Inputs

assoc

an assoc

Outputs

assoc'

a new assoc

Word description
Outputs an assoc removing keys that are f.

Examples

USING: prettyprint assocs hashtables ; H{ { 1 2 } { f 3 } } sift-keys .
H{ { 1 2 } }

See also
sift-values, harvest-keys, harvest-values

Definition

USING: kernel ;

IN: assocs

: sift-keys ( assoc -- assoc' ) [ drop ] assoc-filter ; inline