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JavaScript

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

Why just the list 'property' instead of the 'children' property?

In this snippet of code we see the children property used. Why not just use the 'list' or index '[i]' property?

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

    const isChecked = e.target.checked;
    const lis = ul.children;

    if (isChecked){

        for (let i=0; i < lis.length; i += 1) {

          let li = lis[i];    
          if (li.className === 'responded'){
            li.style.display = '';
          }else {
            li.style.display = 'none';

         }
      }
    } else {

        for (let i=0; i < lis.length; i += 1) {

          let li = lis[i];
          li.style.display = '';


        }

    }


});

1 Answer

Steven Parker
Steven Parker
229,695 Points
Steven Parker
Steven Parker
229,695 Points

The list (ul) itself is just a single element, so you would not be able to use an index with it. But the children refer to a collection (of list items) which can be indexed. You can see an example of that just a few lines later.

As to your other question, I'm not familiar with any property named "list".