I have use remove() to a element, how do I get the element back ? in javascript code example

Example 1: js remove html element

// Get the element you want to remove
var element = document.getElementById(elementId);

// Get the parent and remove the element since it is a child of the parent
element.parentNode.removeChild(element);

Example 2: delete element html javascript

function removeElement(elementId) {
// Removes an element from the document.
var element = document. getElementById(elementId);
element. parentNode. removeChild(element);
}