text: const { NotImplementedError } = require('../extensions/index.js');
  
  /**
   * 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 k = 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;
   * }
   */
  
  module.exports = function removeKFromList(l, k ) {
  
    while (l.value === k){
      l = l.next;
    }
  
    let CurrentItem = l;
    let NextItem = CurrentItem.next;
    // если значение совпадает перепрыгиваем через него и оно удаляется.
    while (NextItem.next !== null) {
      if (NextItem.value === k){
        CurrentItem.next = NextItem.next;
      }
    CurrentItem = CurrentItem.next;
    NextItem = NextItem.next;
    }
    return l;
  }
  