text: /**
   * Given a singly linked list of integers l and an integer k,
   * remove all elements from list l that have a value equal to k.
   *
   * @param {List} l
   * @param {Number} k
   * @return {List}
   *
   * @example
   * For l = [3, 1, 2, 3, 4, 5] and l = 3,
   * the output should be [1, 2, 4, 5]
   *
   * Singly - linked lists are already defined with this interface
   * function ListNode(x) {
   *   this.value = x;
   *   this.next = null;
   * }
   */
  
  function removeKFromList(l, k) {
    function ListNode(x) {
      this.value = x;
      this.next = null;
    }
  
    function deepCopy(obj) {
      const node = new ListNode(obj.value);
      node.next = obj.next !== null ? deepCopy(obj.next) : null;
      return node;
    }
  
    function deepCheck(list) {
      let obj = deepCopy(list);
      obj = obj.value === k ? obj.next : obj;
      obj.next = obj.next !== null ? deepCheck(obj.next) : obj.next;
      return obj;
    }
  
    return deepCheck(deepCopy(l), k);
  }
  
  module.exports = removeKFromList;
  