From e3547acc13fc4746b8c9ec5777f9d9627ef685cf Mon Sep 17 00:00:00 2001
From: Philippe Torrel <webmaster@gkontra.de>
Date: Tue, 20 Oct 2026 14:42:50 +0200
Subject: [PATCH]

---
 .../tag32/01_hello-world/index.html           |  14 +
 .../tag32/01_hello-world/package-lock.json    | 530 ++++++++++++++++++
 .../tag32/01_hello-world/package.json         |  18 +
 .../tag32/01_hello-world/src/index.jsx        |  13 +
 4 files changed, 575 insertions(+)
 create mode 100644 06_react/unterricht/tag32/01_hello-world/index.html
 create mode 100644 06_react/unterricht/tag32/01_hello-world/package-lock.json
 create mode 100644 06_react/unterricht/tag32/01_hello-world/package.json
 create mode 100644 06_react/unterricht/tag32/01_hello-world/src/index.jsx

diff --git a/06_react/unterricht/tag32/01_hello-world/index.html b/06_react/unterricht/tag32/01_hello-world/index.html
new file mode 100644
index 0000000..ee35a18
--- /dev/null
+++ b/06_react/unterricht/tag32/01_hello-world/index.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="de">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Hello World with React</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
+    <script src="dist/bundle.js" defer></script>
+  </head>
+  <body>
+    <!-- content via react-->
+    <div id="root"></div>
+  </body>
+</html>
diff --git a/06_react/unterricht/tag32/01_hello-world/package-lock.json b/06_react/unterricht/tag32/01_hello-world/package-lock.json
new file mode 100644
index 0000000..829898c
--- /dev/null
+++ b/06_react/unterricht/tag32/01_hello-world/package-lock.json
@@ -0,0 +1,530 @@
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+      "resolved": "https://registry.npmjs.org/react/-/react-19.3.1.tgz",
+      "integrity": "sha512-QNhWdt7nrgVWWQG58QuGsAR3jv3Hbe4mb4vz7w2csnHavciZJgda1CPNaldF6eVxv90ud3jUXpKlHL69gO38yw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/react-dom": {
+      "version": "19.3.1",
+      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-19.3.1.tgz",
+      "integrity": "sha512-Y0bARz53lhEC1NMCASs0/j+faB/zqt3R8hpvg1e8+61ZVJ4UL0UdC4cBbXfZMcIuhrfgeILTLe+ZeBCavQPtKQ==",
+      "license": "MIT",
+      "dependencies": {
+        "scheduler": "^0.28.0"
+      },
+      "peerDependencies": {
+        "react": "^19.3.1"
+      }
+    },
+    "node_modules/scheduler": {
+      "version": "0.28.0",
+      "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.28.0.tgz",
+      "integrity": "sha512-juorfCmIkIw8tT+p5BXSm6PJjQF/ycEYmKyzURCIt/RaZIhL+PulbQ9Yu2z1HdOJDdqDTlxA1+xKBmHXJsczAw==",
+      "license": "MIT"
+    }
+  }
+}
diff --git a/06_react/unterricht/tag32/01_hello-world/package.json b/06_react/unterricht/tag32/01_hello-world/package.json
new file mode 100644
index 0000000..0f1d6c7
--- /dev/null
+++ b/06_react/unterricht/tag32/01_hello-world/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "01_hello-world",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "dev": "npx esbuild \"src/index.jsx\" --bundle --watch --outfile=\"dist/bundle.js\" --loader:.js=jsx"
+  },
+  "keywords": [],
+  "type": "module",
+  "dependencies": {
+    "react": "^19.3.1",
+    "react-dom": "^19.3.1"
+  },
+  "devDependencies": {
+    "esbuild": "^0.28.2"
+  }
+}
diff --git a/06_react/unterricht/tag32/01_hello-world/src/index.jsx b/06_react/unterricht/tag32/01_hello-world/src/index.jsx
new file mode 100644
index 0000000..652c3e7
--- /dev/null
+++ b/06_react/unterricht/tag32/01_hello-world/src/index.jsx
@@ -0,0 +1,13 @@
+import React from 'react'; // react lib aus node_modules, funktioniert dank bundler (esbuild)
+import ReactDOM from 'react-dom/client';
+
+const App = () => {
+  return <h1>Hello World</h1>; // document.createElement("h1", null, "Hello World")
+};
+
+// seit React 17
+// ReactDOM.render(<h1>Hello World</h1>, document.getElementById('root'))
+
+// seit React 18 - März 2022
+ReactDOM.createRoot(document.getElementById('root')) //
+  .render(<App />);