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JavaScript JavaScript and the DOM (Retiring) Making Changes to the DOM Removing Nodes

Cannot read property 'addEventListener' of null

this is the html code:-

<button class="removeItemButton">Remove last item</button>

and this is the JS code :-

removeItemButton.addEventListener('click', () => { let ul = document.getElementsByTagName('ul')[0]; let li = document.querySelector('li:last-child'); ul.removeChild(li); });

i still gey uncaught typeError: cannot read property 'addEventlistener' of ull

1 Answer

Steven Parker
Steven Parker
231,084 Points

Not shown above is the definition of the variable which is critical to proper operation:

const removeItemButton = document.querySelector('button.removeItemButton');

A typo in this statement could easily create the error you are experiencing.