Having difficulty accessing and modifying child elements

I am encountering an issue where the 'remove' property is showing as undefined when I try to add or remove a class on an element. Upon inspecting the parent element using element.parentNode, I can see that there are child span elements present. However, when attempting to log or remove a class from these span elements, it seems like they are not being recognized. Can anyone point out what I might be doing incorrectly? How can I successfully get and make changes to these child elements? You can find the complete code snippet on this CodePen link. Thank you.

$scope.update = function(event, filterText) {
  var parent = event.parentNode;
  console.log(parent);
  var children = parent.childNodes;
  console.log(children);
  children.forEach(child => {
    console.log(child);
    child.classList.remove('active-span');
  });

// UPDATE: The error regarding property 'remove' being undefined has been resolved. However, the class still persists on the element despite removal attempts.

$scope.update = function(event, filterText) {

  var spans = document.getElementsByClassName('header-span');
  Array.from(spans).forEach(span => {
    console.log(span);
    span.classList.remove('active-span');
  });
  
  event.classList.add('span-active');
  if(filterText === undefined){
    $scope.searchText = filterText;
  } else {
    $scope.searchText = function(e) {
      return (filterText.indexOf(e.Type) !== -1);
    };
  }
}

;

Answer №1

There is a mistake in the class, it should be active-span

span.classList.remove('active-span'); // correct way to remove class

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