46. Memoization III - TTL Cache Stats

Implement an advanced memoize function with TTL (Time-To-Live), custom cache key generation, cache statistics, cache warming, and multi-level caching.

1. Advanced Features

• TTL: Cache entries expire after specified time
• Custom Keys: Support custom cache key generation function
• Cache Statistics: Track hits, misses, size, etc.
• Cache Warming: Pre-populate cache with values
• Multi-level Caching: Support multiple cache levels

Examples

// Example: TTL cache
const memoized = memoize(fn, { ttl: 1000 }); // 1 second TTL

// Example: Custom key generator
const memoized2 = memoize(fn, {
  keyGenerator: (args) => args[0].id
});

// Example: Cache statistics
const memoized3 = memoize(fn, { enableStats: true });
memoized3.getStats(); // { hits: 5, misses: 2, size: 3 }