When implementing a JavaScript solution for fetching feature flags, how would you optimize performance and manage caching?

Hard Difficulty

Hard questions require advanced understanding and critical thinking. Here, your problem-solving skills are key, as these questions often involve complex scenarios needing in-depth analysis and well-structured responses.

Javascript question

JavaScript questions test your proficiency with this versatile programming language. Demonstrate your understanding of language fundamentals, asynchronous programming, frameworks, and how you build dynamic web applications.

Here's a Hint

Consider client-side storage options like localStorage and sessionStorage, and discuss strategies for cache invalidation and refresh.