{"id":30184406,"url":"https://github.com/nextlevelshit/web-engineering-mandala","last_synced_at":"2026-02-10T16:16:34.359Z","repository":{"id":299265776,"uuid":"1002507248","full_name":"nextlevelshit/web-engineering-mandala","owner":"nextlevelshit","description":null,"archived":false,"fork":false,"pushed_at":"2025-06-15T16:13:27.000Z","size":36,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2025-06-15T17:24:32.818Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"HTML","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/nextlevelshit.png","metadata":{"files":{"readme":"Readme.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2025-06-15T16:10:31.000Z","updated_at":"2025-06-15T16:13:31.000Z","dependencies_parsed_at":"2025-06-15T17:35:55.927Z","dependency_job_id":null,"html_url":"https://github.com/nextlevelshit/web-engineering-mandala","commit_stats":null,"previous_names":["nextlevelshit/web-engineering-mandala"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/nextlevelshit/web-engineering-mandala","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nextlevelshit%2Fweb-engineering-mandala","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nextlevelshit%2Fweb-engineering-mandala/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nextlevelshit%2Fweb-engineering-mandala/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nextlevelshit%2Fweb-engineering-mandala/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/nextlevelshit","download_url":"https://codeload.github.com/nextlevelshit/web-engineering-mandala/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nextlevelshit%2Fweb-engineering-mandala/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":270057822,"owners_count":24519534,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-08-12T02:00:09.011Z","response_time":80,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2025-08-12T12:07:47.943Z","updated_at":"2026-02-10T16:16:34.327Z","avatar_url":"https://github.com/nextlevelshit.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Web Engineering - Mandala\n\n![image](https://github.com/user-attachments/assets/b6e08d48-69e5-4b92-b02c-ff4dc0a3f944)\n\n\n### Internet Geschichte\n- 1966: ARPANET\n- 1969: RFCs → 1986 IETF → 1992 Internet Society\n- 1974: TCP/IP und HTTP(S)\n- 1987: Domain Names und DNS\n- 1993: \"Erster\" Browser - Mosaic\n- 1994: W3C (HTML, XML, CSS, SVG, WCAG)\n- 1995: ECMAScript (JS)\n- 2006/08: V8 JS Runtime Engine\n\n### Entwicklungsumgebung\n**Benötigt:**\n- git\n- nodeJS und npm\n- cURL oder wget\n- IDE (VS Code, JetBrains WebStorm)\n- Optional: Docker\n\n**Git Basics:**\n```bash\ngit init\ngit add [Dateiname]\ngit commit -m \"Commit-Nachricht\"\ngit push [remote] [branch]\ngit pull [remote] [branch]\ngit clone [repository-URL]\n```\n\n---\n\n## Sitzung 2: HTML \u0026 CSS (16.05.)\n\n### HTML Anatomie\n```html\n\u003cp class=\"editor-note\"\u003eMy cat is very grumpy\u003c/p\u003e\n```\n- Opening Tag + Content + Closing Tag = Element\n- Attributes in Opening Tag\n\n### HTML Meta Data / Open Graph\n```html\n\u003cmeta name=\"description\" content=\"Beschreibung der Seite\" /\u003e\n\u003cmeta property=\"og:title\" content=\"Seitentitel\" /\u003e\n\u003cmeta property=\"og:description\" content=\"Beschreibung\" /\u003e\n\u003cmeta property=\"og:image\" content=\"bild.png\" /\u003e\n```\n\n### HTML Input Autocomplete\n```html\n\u003clabel for=\"cc-number\"\u003eKreditkartennummer\u003c/label\u003e\n\u003cinput name=\"cc-number\" id=\"cc-number\" autocomplete=\"cc-number\" /\u003e\n\n\u003clabel for=\"lastName\"\u003eNachname:\u003c/label\u003e\n\u003cinput name=\"lastName\" id=\"lastName\" autocomplete=\"family-name\" /\u003e\n```\n\n### HTML Microdata\n```html\n\u003cdiv itemscope itemtype=\"https://schema.org/Event\"\u003e\n  \u003cdiv itemprop=\"name\"\u003eSpinal Tap\u003c/div\u003e\n  \u003cspan itemprop=\"description\"\u003eReunion Show\u003c/span\u003e\n  \u003ctime itemprop=\"startDate\" datetime=\"2011-05-08T19:30\"\u003e8. Mai\u003c/time\u003e\n\u003c/div\u003e\n```\n\n### CSS Anatomie\n```css\n/* ID selector */\n#description {\n  color: orangered; /* Property: Value */\n}\n```\n\n### CSS Specificity\nReihenfolge der Spezifität (höchste zuerst):\n1. Inline Styles\n2. IDs\n3. Classes, Attributes, Pseudo-classes\n4. Elements\n\n### CSS Frameworks\n- **TailwindCSS**: Utility-First CSS Framework\n- **Flowbite**: Tailwind CSS Component Library\n\n---\n\n## Sitzung 5: JavaScript \u0026 nodeJS (06.06.)\n\n### ECMAScript\n- Standardisiert seit 1997 als ECMA-262\n- Neueste Edition: ECMAScript 2023 (ES14)\n- ES6/ES2015 als wichtiger Meilenstein\n\n### Client vs Server-Side JavaScript\n\n**Client-Side:**\n- DOM Manipulation\n- Browser APIs (window, document, navigator)\n\n**Server-Side (nodeJS):**\n- Non-blocking I/O\n- File System Access\n- Database Processing\n- Web Server Funktionalität\n\n### Frontend Frameworks\n\n**React:**\n```jsx\nfunction MyButton() {\n  const [count, setCount] = useState(0);\n  \n  function handleClick() {\n    setCount(count + 1);\n  }\n  \n  return (\n    \u003cbutton onClick={handleClick}\u003e\n      Clicked {count} times\n    \u003c/button\u003e\n  );\n}\n```\n\n**Vue.js:**\n```vue\n\u003ctemplate\u003e\n  \u003cbutton @click=\"handleClick\"\u003e\n    Clicked {{ count }} times\n  \u003c/button\u003e\n\u003c/template\u003e\n\n\u003cscript\u003e\nexport default {\n  data() {\n    return { count: 0 };\n  },\n  methods: {\n    handleClick() {\n      this.count++;\n    }\n  }\n};\n\u003c/script\u003e\n```\n\n**Svelte:**\n```svelte\n\u003cscript\u003e\n  let count = 0;\n  \n  function handleClick() {\n    count += 1;\n  }\n\u003c/script\u003e\n\n\u003cbutton on:click={handleClick}\u003e\n  Clicked {count} {count === 1 ? 'time' : 'times'}\n\u003c/button\u003e\n```\n\n### Rendering Frameworks\n- **Next.js**: React-basiert, SSR/SSG\n- **Nuxt**: Vue-basiert, SSR/SSG\n- **Gatsby**: Static Site Generator mit GraphQL\n\n### Build Tools\n- **Webpack**: Module Bundler mit großem Ecosystem\n- **Vite**: Schnelle Entwicklungsumgebung mit Rollup\n- **Parcel**: Zero-Configuration Bundler\n\n### npm Scripts\n```json\n{\n  \"scripts\": {\n    \"start\": \"npm run dev\",\n    \"dev\": \"vite\",\n    \"build\": \"vite build\",\n    \"preview\": \"vite preview\"\n  }\n}\n```\n\n---\n\n## Sitzung 6: nodeJS Server (13.06.)\n\n### nodeJS Basics\n```javascript\n// Process handling\nprocess.on(\"SIGINT\", () =\u003e {\n  console.log(\"Received SIGINT. Closing server...\");\n  server.close(() =\u003e {\n    console.log(\"Server closed.\");\n    process.exit(0);\n  });\n});\n```\n\n### Express.js Server\n```javascript\nimport express from \"express\";\n\nconst app = express();\napp.use(express.json());\n\n// Basic route\napp.get(\"/api\", async (req, res) =\u003e {\n  res.json({ timestamp: Date.now() });\n});\n\n// Start server\nconst server = app.listen(3000, () =\u003e {\n  console.log('Server running on port 3000');\n});\n```\n\n### CRUD Operations\n```javascript\n// GET\napp.get(\"/api/users/:id\", (req, res) =\u003e {\n  const user = users.find(u =\u003e u.id === req.params.id);\n  res.json(user);\n});\n\n// POST\napp.post(\"/api/users\", (req, res) =\u003e {\n  const newUser = { id: Date.now(), ...req.body };\n  users.push(newUser);\n  res.status(201).json(newUser);\n});\n\n// PUT\napp.put(\"/api/users/:id\", (req, res) =\u003e {\n  const index = users.findIndex(u =\u003e u.id === req.params.id);\n  users[index] = { ...users[index], ...req.body };\n  res.json(users[index]);\n});\n\n// DELETE\napp.delete(\"/api/users/:id\", (req, res) =\u003e {\n  users = users.filter(u =\u003e u.id !== req.params.id);\n  res.status(204).send();\n});\n```\n\n### WebSockets\n```javascript\nimport { WebSocketServer } from \"ws\";\n\nconst wss = new WebSocketServer({ port: 8080 });\n\nwss.on(\"connection\", (ws) =\u003e {\n  console.log(\"Client connected\");\n  \n  ws.on(\"message\", (data) =\u003e {\n    console.log(\"Received:\", data.toString());\n    ws.send(`Echo: ${data}`);\n  });\n});\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnextlevelshit%2Fweb-engineering-mandala","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnextlevelshit%2Fweb-engineering-mandala","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnextlevelshit%2Fweb-engineering-mandala/lists"}