Listening to changes in document

[spike1236]

In Codemirror, using transactions, we can record and get specific changes in editor content using wonderful function:

tr.changes.iterChanges((fromA, toA, fromB, toB, txt) => {
...
}

Is this possible in Milkdown/Prosemirror?
Also, is there any faster way to interact with editor than replaceAll?