Element

Element.attributes


document.body.attributes[0].name
document.body.attributes[0].value

Element.classList


document.body.classList.remove('color-red')
document.body.classList.add('color-blue')

Element.className


document.body.className = 'text-center'

Element.id


document.body.id

Element.innerHTML


document.body.innerHTML = '<h1>Lorem ipsum</h1>'

Element.hasAttribute()


document.body.hasAttribute('id')

Element.setAttribute()


document.body.setAttribute('class', 'active red')

Element.insertAdjacentHTML()


const tbody = document.querySelector('table tbody')
tbody.insertAdjacentHTML('afterbegin', '<tr><td>Item</td></tr>')
tbody.insertAdjacentHTML('beforeend', '<tr><td>Item</td></tr>')

Element.querySelector()


const tbody = document.querySelector('table tbody')
tbody.querySelector('#time')

Element.querySelectorAll()


const tbody = document.querySelector('table tbody')
tbody.querySelectorAll('.last-column')

ChildNode.remove()


const tbody = document.querySelector('table tbody')
const lastRow = tbody.querySelector('#last-row')
lastRow.remove()