window.addItem = function() {
  var list = document.getElementById("list");
  var listItem = document.createElement("li");
  var input = document.createElement("input");

  input.addEventListener('keydown', event => {
    if(event.key === 'Enter') {
      listItem.textContent = event.target.value;
    }
  })

  listItem.appendChild(input);
  list.appendChild(listItem);

  var iconsContainer = document.createElement("span");
  listItem.appendChild(iconsContainer);

  var editIcon = document.createElement("i");
  editIcon.classList.add('fas', 'fa-edit');
  iconsContainer.appendChild(editIcon);

  var addIcon = document.createElement("i");
  addIcon.classList.add('fas', 'fa-plus');
  iconsContainer.appendChild(addIcon);

  var deleteIcon = document.createElement("i");
  deleteIcon.classList.add('fas', 'fa-trash-alt');
  iconsContainer.appendChild(deleteIcon);

  var completeIcon = document.createElement("i");
  completeIcon.classList.add('fas', 'fa-check');
  iconsContainer.appendChild(completeIcon);
}