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JavaScript DOM Scripting By Example Editing and Filtering Names Saving Names

armand Rodriguez
armand Rodriguez
7,830 Points

Any drawbacks to alternative method

I had an alternative way and it seemed to work for me. I was just wondering if there would be problems with inserting an 'if' statement into the 'edit' 'else-if statement'. Heres my code:

ul.addEventListener('click', (e) => {
if (e.target.tagName === 'BUTTON') {
  const button = e.target;
  const li = button.parentNode;
  const ul = li.parentNode;
  if (button.textContent === "remove") {
  ul.removeChild(li);
  } else if (button.textContent === "edit") {
    const span = li.firstElementChild;
    const input = document.createElement('input');
    input.type = 'text';
    input.value = span.textContent;
    li.insertBefore(input, span);
    li.removeChild(span);
    button.textContent = 'save';
    button.addEventListener ('click', (e) => {
    if (e.target.textContent === 'save') {
      span.textContent = input.value;
      li.appendChild(span);
      li.insertBefore(span, input);
      li.removeChild(input);
      button.textContent = edit;
    }
    });
  }
}
});

1 Answer

Steven Parker
Steven Parker
229,644 Points

It's not the "if" statement that makes the difference here, it's that fact that it is part of a completely separate event handler that gets attached as part of the "edit" button processing.

This may work, but deviates from the point of the original code, which was to have a single delegated handler that would take care of all the buttons, and not require additional handlers to be set up later.