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JavaScript

Michael Williams
PLUS
Michael Williams
Courses Plus Student 8,059 Points
Posted by Michael Williams
Michael Williams
Courses Plus Student 8,059 Points

Why do I need the li's parent node for this code to work?

In the code below, I'm referring to this specific if statement (the second to last one):

if (event.target.className == "down")

As the title of my question says, why do I need the li's parent for the code to work? Why can't I just stop at li because that's the thing that's moving. 

const listUl = listDiv.querySelector("ul");

listUl.addEventListener("click", (event) => {
  if (event.target.tagName == "BUTTON") {
    if (event.target.className == "remove") {
    let li = event.target.parentNode;
    let ul = li.parentNode;
    ul.removeChild(li);
    }
    if (event.target.className == "up") {
    let li = event.target.parentNode;
    let prevLi = li.previousElementSibling;
    let ul = li.parentNode;
    if (prevLi) {
      ul.insertBefore(li, prevLi);
      }
    }
    if (event.target.className == "down") {
    let li = event.target.parentNode;
    let nextLi = li.nextElementSibling;
    let ul = li.parentNode;
    if (nextLi) 
      ul.insertBefore(nextLi, li);

  }
 }
});