Wolfram: Association to List, Get All Keys or Values

By Xah Lee. Date: . Last updated: .

To List of Rules

Normal[asso]

convert assoc to a List of Rules .

Normal 

Normal[ Association[ a -> 3, b -> 2 ] ]
(* {a -> 3, b -> 2 } *)

Get All Keys

Keys[asso]

return a list of the keys.

Keys 

xx = Association[ a -> 3, b -> 2 ];
Keys[ xx ]
(* {a, b} *)

Get All Values

Values[asso]

return a list of the values.

Values 

xx = Association[ a -> 3, b -> 2 ];
Values[ xx ]
(* {3, 2} *)

Get Values by Pattern Matching on Values

Cases

return a list of values by matching Pattern

Cases 

xx = Association[ 1 -> a, 2 -> b, 3 -> 33, 4 -> 44 ];
Cases[ xx, _Integer ]
(* {33, 44} *)

WolframLang, Association (Key Value List)