Iterate through an array in an alternating fashion in JavaScript

AlternatingArray.js

class AlternatingArray extends Array {
  constructor(...args) {
    super(...args);
  }
  *[Symbol.iterator](){
    for (let i = 0; i < this.length; i += 2) {
      yield this[i];
    }
    for (let i = 1; i < this.length; i += 2) {
      yield this[i];
    }
  }
}

const a = new AlternatingArray(1, 2, 3, 4, 5, 6, 7, 8);
console.log([...a]);       // [1, 3, 5, 7, 2, 4, 6, 8]