const myElements = document.querySelectorAll(‘.bar’)<br />

var newDiv = document.createElement(‘div’);<br /> newDiv.innerHTML = ‘<p>Hello World!</p>’;<br /> document.body.appendChild(newDiv);

const myChildElemet = myElement.querySelector(‘input[type=”submit”]’)</p> <p>// Instead of<br /> // document.querySelector(‘#foo > div.bar input[type=”submit”]’)<br />

const myElement = document.querySelector(‘#foo > div.bar’)<br />

myElement.matches(‘div.bar’) === true<br />