[{"role":"user","content":"How do I write a function in TypeScript to reverse a string?"},{"role":"assistant","content":"Sure! Here's a TypeScript function that reverses a string:\n```typescript\nfunction reverseString(s: string): string {\n return s.split('').reverse().join('');\n}\n\n// Example usage\nconsole.log(reverseString(\"hello\")); // Output: \"olleh\"\n```"},{"role":"user","content":"How can I create a basic HTTP server in TypeScript using Node.js?"},{"role":"assistant","content":"You can create a basic HTTP server in TypeScript using the `http` module in Node.js. Here's an example:\n```typescript\nimport * as http from 'http';\n\nconst hostname: string = '127.0.0.1';\nconst port: number = 3000;\n\nconst server = http.createServer((req, res) =\u003e {\n res.statusCode = 200;\n res.setHeader('Content-Type', 'text/plain');\n res.end('Hello World\\n');\n});\n\nserver.listen(port, hostname, () =\u003e {\n console.log(`Server running at http://${hostname}:${port}/`);\n});\n```"}]