ttl

Unlike many of the other core.memo memoization functions, `memo-ttl`'s cache policy is time-based rather than algorithmic or explicit. When memoizing a function using `memo-ttl` you should provide a **T**ime **T**o **L**ive parameter in milliseconds. (require '[clojure.core.memoize :as memo]) (def id (memo/ttl identity :ttl/threshold 5000)) (id 42) (snapshot id) ;=> {[42] 42} ... wait 5 seconds ... (id 43) (snapshot id) ;=> {[43] 43} The expired cache entries will be removed on each cache **miss**.