When should I use EventEmitter in Node.js?
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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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.
A pattern for processing large data in chunks. Readable, writable, transform, and duplex streams process data as it flows through, instead of loading everything into memory at once. This keeps memory low for large inputs.
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