assoc-union! ( assoc1 assoc2 -- assoc1 )
Factor handbook » The language » Collections » Associative mapping operations » Set-theoretic operations on assocs
Prev:extract-keys ( seq assoc -- subassoc )
Next:assoc-diff! ( assoc1 assoc2 -- assoc1 )


Vocabulary
assocs

Inputs
assoc1an assoc
assoc2an assoc


Outputs
assoc1an assoc


Word description
Adds all entries from assoc2 to assoc1.

Side effects
Modifies assoc1

Definition
USING: kernel ;

IN: assocs

: assoc-union! ( assoc1 assoc2 -- assoc1 )
over [ [ swap ] ] dip [ set-at ] curry compose assoc-each ;
inline