WeakMap & WeakSet

What benefit does this tracking implementation provide?

const resourceTracker = new WeakMap();

class Resource {
  constructor(data) {
    this.data = data;
    resourceTracker.set(this, {
      createdAt: Date.now(),
      lastAccessed: Date.now(),
      accessCount: 0
    });
  }
  
  access() {
    const meta = resourceTracker.get(this);
    meta.lastAccessed = Date.now();
    meta.accessCount++;
    return this.data;
  }
}

It makes resource access faster
It prevents unauthorized access
It allows metadata to be garbage collected with its resource
This tracking implementation provides: 1) Automatic cleanup of metadata when resources are garbage collected, 2) No risk of memory leaks from orphaned tracking data, 3) Clean association between resources and their usage statistics, 4) Efficient memory management without manual cleanup, 5) The ability to track resource usage without affecting their lifecycle, 6) Natural handling of resource destruction and cleanup, 7) Scalability with large numbers of resource instances, 8) A practical example of WeakMap's use in resource management.
It improves data security

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