console.clear();

​

let mybold = document.querySelectorAll('b'),

    myCoffee = document.getElementsByTagName('coffee');

​

console.log(mybold.length); // 3

console.log(mybold[0].tagName); // "B"

console.log(myCoffee[0].tagName); // "COFFEE"

​

console.log(myCoffee[0].nodeType); // 1

console.log(myCoffee[0].innerText); // "Fake Coffee Element"

​

myCoffee[0].innerHTML = "New text";

​

console.log(myCoffee[0].getAttribute('medium')); // "yes"

​

myCoffee[0].setAttribute('medium', 'no');

​

myCoffee[0].getAttribute('medium');

​

console.log(myCoffee[0].getAttribute('medium')); // "no"