30 lines
828 B
TypeScript
30 lines
828 B
TypeScript
/** 默认缓存期限为7天 */
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const DEFAULT_CACHE_TIME = 60 * 60 * 24 * 7;
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export function setLocal(key: string, value: unknown, expire: number | null = DEFAULT_CACHE_TIME) {
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const json = JSON.stringify({ value, expire: expire !== null ? new Date().getTime() + expire * 1000 : null });
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window.localStorage.setItem(key, json);
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}
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export function getLocal<T>(key: string) {
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const json = window.localStorage.getItem(key);
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if (json) {
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const data = JSON.parse(json);
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const { value, expire } = data;
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/** 在有效期内直接返回 */
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if (expire === null || expire >= Date.now()) {
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return value as T;
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}
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removeLocal(key);
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}
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return null;
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}
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export function removeLocal(key: string) {
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window.localStorage.removeItem(key);
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}
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export function clearLocal() {
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window.localStorage.clear();
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}
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