Stack.js

class Stack {
  constructor() {
    this.list = new LinkedList();
  }

  get isEmpty() {
    return this.list.isEmpty;
  }

  /**
   * Iterator function.
   *
   * @returns
   * @memberof Stack
   */
  [Symbol.iterator]() {
    return this.list[Symbol.iterator]();
  }

  push(value) {
    this.list.addHead(value);
    return this;
  }

  pop() {
    if (this.isEmpty) {
      throw new Error('STACK_UNDERFLOW');
    }
    return this.list.removeHead();
  }
}

const stack = [1,2,3,4,5,6].reduce((stack, value) => stack.push(value),new Stack());
console.log(...stack); // 6 5 4 3 2 1