Clojurians Log v2

assuming you’re using reagent, you can have a https://github.com/reagent-project/reagent/blob/master/doc/CreatingReagentComponents.md#form-2--a-function-returning-a-function that creates an atom in the outer-fn:

(defn your-component []
  (let [ref (atom nil)]
    ;; you can pass @ref to other stuff that might need it
    (fn []
      [:> SlidingUpPanel {:ref #(reset! ref %)}])))

(def ref (react/createRef))

;; use (.-current ref) to access the component from elsewhere

(defn your-component []
  [:> SlidingUpPanel {:ref ref}])