Delta sisi server quill js
const Delta = require('quill-delta'); // npm install quill-delta
let serverSideDelta = {};
let deltaToAdd = <some client side delta>;
// Apply clientSideDelta on serverSideDelta
serverSideDelta = {
ops: new Delta(serverSideDelta.ops).compose(new Delta(deltaToAdd))).ops
};
garzj