How to manually insert DOM components in a react tree?

Question

JavaScript

I have a task to manually insert a component into the DOM tree. That is, by analogy with

let container = document.getElementById('container');
let h2 = document.createElement("h2");
h2.innerHTML = "Hello!";
container.appendChild(h2);

But I need to insert my own Title component instead of h2. How can this problem be solved? (return won't work in my case)

Answer 1

Portals