You are currently looking at the < v8.2.0 docs (Reason v3.6 syntax edition). You can find the latest API docs here.
(These docs cover all versions between v3 to v8 and are equivalent to the old BuckleScript docs before the rebrand)
Storage
t
type t
getItem
external getItem: (string, t) => option<string> = "getItem"
setItem
external setItem: (string, string, t) => unit = "setItem"
removeItem
external removeItem: (string, t) => unit = "removeItem"
clear
external clear: t => unit = "clear"
key
external key: (int, t) => option<string> = "key"
length
external length: t => int = "length"
localStorage
[@bs.val] external localStorage: t = "localStorage"
sessionStorage
[@bs.val] external sessionStorage: t = "sessionStorage"
