ListDiffer, ChildrenDiffer

childrendiffer.js

import ListDiffer from "@egjs/list-differ";
import ChildrenDiffer from "@egjs/children-differ";

// Indicates the callback function that finds the key for that data.
// And only numbers or strings are allowed.
const listDiffer = new ListDiffer([], v => v);

const childrenDiffer = new childrenDiffer(document.body.children);

document.body.appendChild(document.createElement("div"));
const result = childrenDiffer.update(document.body.children);