在javascript中的Array子类中使用.splice方法？

class CustomArray extends Array {
        
  constructor(array) {
    console.log('Initiating array:', array)
    super(...array);
  }

  remove(element) {
    let index = this.indexOf(element);
    if (index > -1) {
      return this.splice(index, 1);
    } 
    return [];
  }

}

var a = ['a', 'b', 'c', 'd', 'e'];

var list = new CustomArray(a)
console.log('list:', list);
console.log('remove:', list.remove('c'));
console.log('list:', list);

class CustomArray extends Array {
  static get [Symbol.species]() { return Array; } // <-----------

  constructor(array) {
    console.log('Initiating array:', array)
    super(...array);
  }

  remove(element) {
    let index = this.indexOf(element);
    if (index > -1) {
      return this.splice(index, 1); // Now calls Array constructor, not CustomArray
    } 
    return [];
  }

}

var a = ['a', 'b', 'c', 'd', 'e'];

var list = new CustomArray(a)
console.log('list:', list);
console.log('remove:', list.remove('c'));
console.log('list:', list);

// Some examples of effects on other methods
console.log(list.map(x => x) instanceof CustomArray); // false
console.log(list.filter(x => 1) instanceof CustomArray); // false
console.log(list.slice() instanceof CustomArray); // false
console.log(list.concat() instanceof CustomArray); // false
// Other methods, that do not return a new instance, are not affected:
console.log(list.reverse() instanceof CustomArray); // true
console.log(list.sort() instanceof CustomArray); // true