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JavaScript

Kate C
Kate C
13,589 Points
Posted by Kate C
Kate C
13,589 Points

What does it mean cannot access 'listDiv' before initialization? and how to make it work?

https://imgur.com/a/u6sSFb2

how to make this work? https://codepen.io/bookmonster/pen/VwvBKJd?editors=1010

1 Answer

Mohammad Azawi
PLUS
Mohammad Azawi
Courses Plus Student 5,631 Points
Mohammad Azawi
Mohammad Azawi
Courses Plus Student 5,631 Points

cannot access 'listDiv' before initialization? Means you need to declare and assigned the variable before you will be able to use it.

and this is the correct way:

// you need to assigned (listDiv) first, then ues it.
const listDiv = document.querySelector('.list');
const listUl = listDiv.querySelector('ul');


// Using parentNode to Traverse Up the DOM
listUl.addEventListener('click', (event) => {
  if(event.target.tagName == 'BUTTON'){
    // let button = event.target
    let li = event.target.parentNode;
    let ul = li.parentNode;
    ul.removeChild(li);
  }
});