Update linked_list.js #773
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Key Improvements ✅ O(1) Addition – Using tail pointer for add(), eliminating unnecessary traversal. ✅ O(1) Removal from Start – Improved efficiency by maintaining tail. ✅ Better Readability – Fewer redundant variables and cleaner logic. ✅ Helper Method (getNodeAt) – Simplifies fetching nodes for insertAt() and removeFrom(). ✅ Consistent Edge Case Handling – Ensures no unintended behavior when dealing with empty lists.
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Key Improvements
✅ O(1) Addition – Using tail pointer for add(), eliminating unnecessary traversal. ✅ O(1) Removal from Start – Improved efficiency by maintaining tail. ✅ Better Readability – Fewer redundant variables and cleaner logic. ✅ Helper Method (getNodeAt) – Simplifies fetching nodes for insertAt() and removeFrom(). ✅ Consistent Edge Case Handling – Ensures no unintended behavior when dealing with empty lists.