I am trying to construct a linked list using a Class with JS. Inside my Class I have a function called checkForEmptyNext() which traverses the list and searches for the node with a next: property of null The function should recursively call itself until it finds the correct node

LinkedList

// 10 --> 15 --> 16


class LinkedList {
  constructor(value){
    
    this.head = {
      value: value,
      next: null
    }
    this.tail = this.head;
    this.length = 1;
  }
  append(value){
    if(this.head.next === null){
      this.head.next = {
        value,
        next: null
      }
      this.tail = this.head.next;
      this.length++
    }else{
      this.checkForEmptyNext(value, this.head.next)
    }
  }
  checkForEmptyNext(value, node){

    if(node.next === null){
        node.next = {
        value,
        next: null
      }
      this.tail = node.next;
      this.length++
    }else{
      this.checkForEmptyNext(value, node.next)
    }
  }
}

const linked = new LinkedList(10);
linked.append(5)
linked.append(16)

console.log(linked)

The console.log is showing:

LinkedList {
  head: { value: 10, next: { value: 5, next: [Object] } },
  tail: { value: 16, next: null },
  length: 3 }

Why am I seeing [Object] instead of the actual serialized value?