Ultra simple Chrome Extension doesn't addEventListener to button onclick event

Question

So I\'m testing out creating a chrome extension. I understand that with Manifest v2 you can\'t have javascript in popup.html. So, I\'ve moved the javascript to a separate fi

Answer 1

Just remove window.onload:

function myAlert(){
    alert('hello world');
}

document.addEventListener('DOMContentLoaded', function () {
    document.getElementById('alertButton').addEventListener('click', myAlert);
});