text: function handleChange() {
    let inputvalue = document.getElementById('search').value.toLowerCase();
    let ul = document.getElementById('todo-list-UL');
    let li = ul.getElementsByTagName('li');
    let searchvalue = inputvalue.toLowerCase();
    //   console.log(searchvalue);
    for (i = 0; i < li.length; i++) {
      let x = li[i].getElementsByClassName('input-edit')[0].value.toLowerCase();
      // console.log(x.indexOf(searchvalue));
      if (x.indexOf(searchvalue) > -1) {
        li[i].style.display = '';
      } else {
        li[i].style.display = 'none';
      }
    }
  }
  