ITransientAssociative

protocolsince v0.0-1211 clojure.lang/ITransientAssociativeEdit
implemented for TransientArrayMap TransientHashMap TransientVector

Source docstring:
Protocol for adding associativity to transient collections.
Source code @ clojurescript:src/main/cljs/cljs/core.cljs
(defprotocol ITransientAssociative
  (^clj -assoc! [tcoll key val]
    "Returns a new transient collection of tcoll with a mapping from key to
     val added to it."))