Method get

src/Stack.js:34–41

(index, notSetValue)

  // @pragma Access

  get(index, notSetValue) {
    let head = this._head;
    index = wrapIndex(this, index);
    while (head && index--) {
      head = head.next;
    }
    return head ? head.value : notSetValue;
  }

  peek() {
    return this._head && this._head.value;