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Storage

localStorage — Persists Across Sessions

(local-storage:set-item "theme" "dark")
(bind theme (local-storage:get-item "theme"))
(local-storage:remove-item "theme")

sessionStorage — Cleared When Tab Closes

Same API, different lifetime.

Storing Objects

Both APIs store strings only. For objects, serialize with JSON:

(local-storage:set-item "user"
  (JSON:stringify (obj :name "Duncan" :age 42)))

(bind user (JSON:parse (local-storage:get-item "user")))