elpa-dash 2.19.1+git20220608.1.0ac1ecf+dfsg-1 (amd64 binary) in ubuntu mantic

 dash.el is API library to manipulate a list by Emacs Lisp.
 This library offers very common feature in other programming languages
 (e.g. map, slice, copy, concat, replace, reduce, union etc) without
 require a 'cl'.