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App.jsBrowser

import Header from "./components/Header";
import Counter from "./components/Counter";
import "./styles/App.css";

export default function App() {
  return (

ReactHeader and counter components, 2 dependencies

index.pyServer

print("Hello, Python!")

PythonPython 3 script with console output

index.tsBrowser

import { greet } from "./utils/helpers";
import "../styles/main.css";

const app = document.getElementById("app")!;
app.innerHTML = `
  <div class="container">

TypeScriptTyped browser page with a helpers module

index.jsBrowser

// Write JavaScript here
console.log("Hello, JavaScript!");

Empty JavaScriptOne index.js, output in the console

Backend & Systems

PythonServerPython 3 script with console output GoServerGo program with fmt output JavaServerJava SE class with a main method C++ServerCompiled and run on the server RustServerCompiled and run on the server Node.jsServerNode script with console output TypeScript (Node)ServerTypeScript run with Node on the server

Frontend Frameworks

ReactBrowserHeader and counter components, 2 dependencies VueBrowserSingle-file header and counter components AngularBrowserComponent, module and template, ready to run SvelteBrowserHeader and counter components SolidJSBrowserHeader and counter components in JSX

Core Languages

JavaScriptBrowserBrowser page with a helpers module TypeScriptBrowserTyped browser page with a helpers module

React Ecosystem

React HooksBrowserCustom useTimer and useSearch hooks React ClassesBrowserClass components and lifecycle methods Redux ToolkitBrowserStore and counter slice wired to React MobXBrowserObservable counter store with mobx-react-lite Framer MotionBrowserAn animated box to tweak and replay Material UIBrowserThemed counter card with MUI components

Empty / Blank Templates

Empty JavaScriptBrowserOne index.js, output in the console Empty TypeScriptBrowserOne index.ts, output in the console Empty ReactBrowserOne App.js with React set up Empty VueBrowserOne App.vue, nothing else Empty AngularBrowserOne component with Angular set up Empty SvelteBrowserOne App.svelte, nothing else Empty SolidBrowserOne App.tsx, nothing else