(1)
function getName() {
name = 'javascript'
}
getName()
(2)
const elements = {
button: document.getElementById('button')
};
function removeButton() {
document.body.removeChild(elements.button);
}
removeButton()
(3)
let timer = setInterval(() => {
const node = document.querySelector('#node')
if(node) {
clearInterval(timer)
}
}, 1000);
