Kartik K

[](https://gitpod.io/from-referrer/) [know more](https://www.gitpod.io/docs/pull-requests/) ### Describe your change: - [ ] Add an algorithm? - [x] Fix a bug or typo in an existing algorithm? - [ ] Documentation change?...

Improper and incomplete implementation of CycleDetection.js

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Implementation of [CycleDetection.js](https://github.com/TheAlgorithms/JavaScript/blob/master/Data-Structures/Linked-List/CycleDetection.js) seems inappropriate. - Weird function name `main()` and its invocation can cause the program to crash. - Tests are missing. - Not exported, Hence not resuable. -...

Added Implementation for Validate BST

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### Describe your change: * [x] Add an algorithm? * [ ] Fix a bug or typo in an existing algorithm? * [x] Documentation change? ### Checklist: * [x] I...