I would like some feedback on a hypothetical piece of emacs functionality i'm thinking about building. Imagine your threading some data through a functional pipeline, like any day working with clojure. (-> some-data ...) Now "some-data" is really a hash-map full of keys, it's like a big bag and at times you might need to pull some out. What if you could fire off a command and then select the keys you need? So "*" is the cursor (-> some-data *) will open a tiny window right there with the list of keys [<k_1> <k_2> ... <k_n>] each with a checkbox you can use to select. The selected keys are then available to paste. so you could just pick one (-> some-data :k_1) Of i you picked two you would get (-> some-data [:k_1 :k_2]) And obviously you would have to wrap it. maybe in something like "select keys" or maybe in "juxt". Currently solutions allow you to create a list easily enough, but not quickly select they keys beyond text manipulation. e.g i can print or create the full list but then i have to to remove keys. I'm not suggesting this is a huge win, just that I think this flow would be slightly more economical in a lot of common cases i run into.

is there a cider eval option that keeps the surrounding s-expression and produces the result? What would be close to my suggestion is a fn similar to 'cider-eval-last-sexp-and-replace' only without the replace part. e.g (-> {:a 1 :c 2} keys *) 'cider-eval-sexp-and-keep' (this doesn't exist) (-> {:a 1 :c 2} keys *) [:a :b]