Should a backend developer use JavaScript for DSA?
If you are applying for Node.js backend roles, yes. If you are applying for general SWE roles, Java, C++, or Python might provide better built-in tools.
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More FAQs in JavaScript for DSA: Is it a Good Idea?
Yes, absolutely. Many frontend and full-stack engineers clear top-tier company interviews using JavaScript for their coding rounds.
JavaScript lacks built-in implementations for Heaps (Priority Queues), Deques, and Balanced Binary Search Trees.
You either have to write the Heap class from scratch during the interview, or ask the interviewer if you can assume a theoretical Heap implementation.
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