interface StorageData<T = any> {
|
data: T
|
expire: number | null
|
}
|
|
export function createLocalStorage(options?: { expire?: number | null }) {
|
// token默认保存7天
|
const DEFAULT_CACHE_TIME = 60 * 60 * 24 * 7
|
|
const { expire } = Object.assign({ expire: DEFAULT_CACHE_TIME }, options)
|
|
function set<T = any>(key: string, data: T) {
|
const storageData: StorageData<T> = {
|
data,
|
expire: expire !== null ? new Date().getTime() + expire * 1000 : null,
|
}
|
|
const json = JSON.stringify(storageData)
|
window.localStorage.setItem(key, json)
|
}
|
|
function get(key: string) {
|
const json = window.localStorage.getItem(key)
|
|
if (json) {
|
let storageData: StorageData | null = null
|
|
try {
|
storageData = JSON.parse(json)
|
}
|
catch {
|
// Prevent failure
|
}
|
|
if (storageData) {
|
const { data, expire } = storageData
|
if (expire === null || expire >= Date.now())
|
return data
|
}
|
|
remove(key)
|
return null
|
}
|
}
|
|
function remove(key: string) {
|
window.localStorage.removeItem(key)
|
}
|
|
function clear() {
|
window.localStorage.clear()
|
}
|
|
return { set, get, remove, clear }
|
}
|
|
export const ls = createLocalStorage()
|
|
export const ss = createLocalStorage({ expire: null })
|
