Async and promises Javascript Questions
Master async and promises javascript interviews with our comprehensive collection of 5 questions and challenges.
Type:
Sort:
Difficulty:
Learn how to limit concurrent API calls in JavaScript using async queues and promise batching — a crucial skill for scalable frontend systems.
advancedjavascriptpromisesasync-await
Learn to build a robust retry mechanism for failed API calls, handling transient network errors gracefully.
intermediatejavascriptpromisesretry
Understand how JavaScript handles tasks, microtasks, and macrotasks — and how to control async execution order effectively.
intermediatejavascriptevent looppromises
Avoid inconsistent state in JavaScript apps by managing promise resolution order — essential for frontend data fetching and UI sync.
intermediatejavascriptasyncrace condition
Prevent multiple token refreshes when parallel API calls fail — learn how to design a shared promise-based refresh mechanism.
advancedjavascriptauthenticationpromises