typescript operate with html objects

1ts// 1. Select the div element using the id property
2const app = document.getElementById("app");
3
4// 2. Create a new <p></p> element programmatically
5const p = document.createElement("p");
6
7// 3. Add the text content
8p.textContent = "Hello, World!";
9
10// 4. Append the p element to the div element
11app?.appendChild(p);