Method forEach

src/utils/map.ts:69–79

(callbackFn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any)

  }

  public forEach(callbackFn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any) {
    if (this._es6Map != null) {
      const callbackWrapper = (value: V, key: K) => callbackFn.call(thisArg, value, key, this);
      this._es6Map.forEach(callbackWrapper, thisArg);
      return;
    }

    this._keyValuePairs.forEach((keyValuePair) => {
      callbackFn.call(thisArg, keyValuePair.value, keyValuePair.key, this);
    });
  }

  public delete(key: K) {
    if (this._es6Map != null) {