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Shifat Kabir5,443 Points
Problem about children property
When I use that: const lis = listUl.children; Console give me that: Uncaught ReferenceError: listUl is not defined at app.js:9 But if I use that: const lis = document.getElementsByTagName('li'); Its work perfectly.
Steven Parker220,378 Points
You must define "listUl" first, before you can use it to reference the "children" attribute.
But your second solution saves a step and is more concise anyway.