To cache a function result based on time and arguments

Timed_memoize.ts

type AnyFunction = (...args: any[]) => any;
type GetReturnType<T extends AnyFunction> = T extends (...args: any[]) => infer R ? R : any;

export const timeCacheResult = <T extends AnyFunction>(
  cache: Map<any, { until: number; value: any }>,
  cacheTime: number,
  func: T,
): T => {
  return function(...args: any[]) {
    const curTime = new Date().getTime();
    const hash = func.name + [].join.call(args);
    const cacheEntry = cache.get(hash);
    if (cacheEntry !== undefined && cacheEntry.until > curTime) {
      return cacheEntry.value as GetReturnType<T>;
    }
    const result = func.apply(this, args);
    cache.set(hash, { until: curTime + cacheTime, value: result });
    return result as GetReturnType<T>;
  } as T;
};