Skip to main content

How are async iterators used in JavaScript?

Senior JavaScript
Quick Answer Async iterators work with for await...of. The iterable must implement Symbol.asyncIterator returning an object with a next() method that returns a Promise<{value, done}>. Used for reading streams, paginated APIs, or any async sequence: for await (const page of paginatedFetch(url)) { display(page); }. Cleaner than recursive async functions for sequential async data.

Answer

Async iterators allow iteration over asynchronous data streams using for-await-of.

Useful for consuming streamed data or paginated API results.

S
SugharaIQ Editorial Team Verified Answer

This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

Want to bookmark, take notes, or join discussions?

Sign in to access all features and personalize your learning experience.

Sign In Create Account

Source: SugharaIQ

Ready to level up? Start Practice