Which I/O model do you prefer—blocking or non-blocking? Each has its pros and cons. Blocking offers simplicity and ease of error handling, while non-blocking delivers better performance and scalability. What does your project need more of? Why?
Which I/O model do you prefer for Node.js projects?
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When choosing an I/O model in Node.js, I decide based on the project's needs. For small or simple tasks like APIs or CLI tools, the blocking model (e.g., `fs.readFileSync`) is often sufficient. Error handling is straightforward, and debugging is simple. For example, reading JSON files or local database connections, I find synchronous methods more reliable.
For large-scale applications (microservices, high-traffic APIs), I prefer the non-blocking model (`fs.readFile`). I prioritize performance and scalability. Even though managing callback/promise chains can be complex in projects dependent on third-party APIs or external data sources, the system ultimately runs more efficiently and responsively. Depending on the use case, I try not to neglect improving code readability by using helper tools like `util.promisify`.