@kokr/date/esm/cache.js

Provides utilities for Korean dates. 날짜 관련 유틸리티를 제공합니다. 공휴일, 절기, 그리고 잡절 정보를 확인하고, 영업일 기준 날짜 계산을 지원합니다.

import * as dntShim from "./_dnt.shims.js";
export function cache(fn, options = {}) {
    const ttl = Math.max(options.ttl ?? 86400, 0);
    const cacheKeyName = options.cacheKeyName ??
        "@kokr/date/holidays";
    return Object.assign(async (year) => {
        const now = Date.now();
        let cacheData = {};
        try {
            cacheData = JSON.parse(dntShim.localStorage.getItem(cacheKeyName) ?? "");
        }
        catch {
            // ignore
        }
        const cache = cacheData[year];
        if (cache && cache.cached + ttl > now) {
            return cache.holidays;
        }
        const holidays = await fn(year);
        cacheData[year] = {
            cached: now,
            holidays,
        };
        dntShim.localStorage.setItem(cacheKeyName, JSON.stringify(cacheData));
        return holidays;
    }, {
        clear() {
            dntShim.localStorage.removeItem(cacheKeyName);
        },
    });
}