WeakMap & WeakSet

Why is WeakSet particularly suitable for this graph traversal scenario?

const visited = new WeakSet();

function processNode(node) {
  if (visited.has(node)) return;
  
  visited.add(node);
  // Process node...
  
  node.children.forEach(child => processNode(child));
}

It makes the traversal faster
It provides better error handling
It prevents cycles while allowing nodes to be garbage collected
WeakSet is ideal for graph traversal because: 1) It tracks visited nodes without preventing their garbage collection, 2) Once the traversal is complete, nodes can be collected if no longer referenced elsewhere, 3) This prevents memory leaks in cyclic graph structures, 4) No cleanup code is needed after traversal, 5) The WeakSet automatically maintains itself based on node lifetime, 6) This is particularly valuable for large or dynamic graph structures, 7) The pattern works well with both recursive and iterative traversal algorithms, 8) It demonstrates how WeakSet can solve practical problems in graph algorithms.
It reduces the depth of recursion

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