Function defer

packages/markmap-common/src/util.ts:42–49

()

}

export function defer<T = void>() {
  const obj: Partial<IDeferred<T>> = {};
  obj.promise = new Promise<T>((resolve, reject) => {
    obj.resolve = resolve;
    obj.reject = reject;
  });
  return obj as IDeferred<T>;
}

export function memoize<T extends unknown[], U>(fn: (...args: T) => U) {
  const cache: Record<string, Record<'value', U>> = {};