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JavaScript

Greg Schudel
Greg Schudel
4,090 Points
Posted by Greg Schudel
Greg Schudel
4,090 Points

Store the value within the target...why?

This "references the checkbox to itself" If I take it away it simply doesn't work. Why do I need to reference it to itself?

ul.addEventListener('change' , (e) => {

  const checkbox = event.target; // references to checkbox itself
  const checked = checkbox.checked;
  const listItem = checkbox.parentNode.parentNode;

if (checked){

  listItem.className = 'responded';
}
  else{
    listItem.className = '';


  }

});

1 Answer

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! You may have added 10 separate people to that list. In that case, there will be ten separate checkboxes. Inside the event listener, it needs to know which checkbox was checked. You could, potentially reference other checkboxes, but we specifically want the checkbox we just interacted with which is the event.target. The target of the event is the checkbox we're wanting to do something with.

Hope this helps! :sparkles: