How do I choose the right async pattern in Node.js?
Use async/await for control flow. Use promises (Promise.all) for parallel operations. Use EventEmitter for event-driven patterns. Use streams for large data. Use callbacks for EventEmitter listeners and older APIs. Match the pattern to the problem.
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More FAQs in Async Patterns in Node.js: Callbacks, Promises, Streams, and Events
async/await for control flow, promises for parallel operations with Promise.all, callbacks for EventEmitter and older APIs, streams for large data processing, and EventEmitter for event-driven patterns. Each solves a different async problem.
For large data processing. Streams process data in chunks instead of loading everything into memory. Use them for large files, HTTP responses, and any data that should not be buffered entirely in memory.
For event-driven patterns, where you emit custom events and listen for them. Many Node.js modules like streams and HTTP servers are built on EventEmitter, so understanding it is key to using those modules.
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