yjs_fundamentals_08.ts

```tsx
import * as Y from "yjs";
import * as util from "util";

const ydoc = new Y.Doc();

// Create a top level data type
const ytext = ydoc.getText("text");

****// Insert subsequent characters
ytext.insert(0, "A");
ytext.insert(1, "B");
ytext.insert(2, "C");

// Log the underlying edits
const updates = Y.encodeStateAsUpdate(ydoc);
console.log(
  util.inspect(Y.decodeUpdate(updates), { colors: true, depth: null })
);
```