How to append to an array

[sammyraul]

Example in README

Command = #{<<"$set">> => #{
    <<"tags.1">> => "rain gear"
  }},
mc_worker_api:update(Connection, Collection, #{'_id' => 100}, Command),

just replaces the element at the 1st position. What I wanted is add the element
at the start or end. Using "-1" does not work.
Any help would be highly appreciated. Thanks

[comtihon]

set command is not what you want.
Please try push or addToSet