A Virtual Dom Implementation

This is a virtual dom learning experience for me by recreating it in vannila JS or maybe TS.

Features Implemented till now..

1. VDOM Tree
2. Reconcilation of DOM (Till april 4th only UnKeyed is Implemented).
3. States and Updates

Demo

Below is a demo program it is just a toy nd learning.

import {
  InnerTextNode,
  fupNode,
  fupMountNodeToDom,
  State,
  ButtonNode,
} from "./fup.ts";

let app: HTMLElement = document.getElementById("app")!;

class CustomNode extends fupNode {
  constructor() {
    super("div", {}, []);
    this.count = this.NewState<number>(10);
  }
  count: State<number>;
  render() {
    let test = () => {
      this.count.setValue(this.count.getValue() + 1);
    };
    let test2 = () => {
      this.count.setValue(this.count.getValue() - 1);
    };
    let test3 = () => {
      console.log("Updated");
      this.count.setValue(this.count.getValue() - 1);
    };
    if (this.count.getValue() >= 10) {
      return [
        new ButtonNode({ onclick: test2 }, this.count.getValue().toString()),
        new InnerTextNode(this.count.getValue().toString()),
        new ButtonNode({ onclick: test }, this.count.getValue().toString()),
        new InnerTextNode(this.count.getValue().toString()),
        new InnerTextNode(this.count.getValue().toString()),
      ];
    } else {
      return [
        new ButtonNode({ onclick: test3 }, this.count.getValue().toString()),
        new InnerTextNode(this.count.getValue().toString()),
        new ButtonNode({ onclick: test }, this.count.getValue().toString()),
      ];
    }
  }
}

let vdom = new CustomNode();

fupMountNodeToDom(vdom, app);