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Practice Zone • NodeJS
6 Topics 20 Questions All Difficulty
Topics
All Questions Full list for NodeJS 120 Async & Event Loop Practice Async & Event Loop with real questions. 20 CLI Tools & Debugging Practice CLI Tools & Debugging with real questions. 20 File System & Paths Practice File System & Paths with real questions. 20 HTTP & APIs Practice HTTP & APIs with real questions. 20 Node Basics & Modules Practice Node Basics & Modules with real questions. 20 Streams & Buffers Practice Streams & Buffers with real questions. 20
Questions
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Buffer From String
Easy
Jan 25, 2026
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Hex To Buffer
Medium
Jan 25, 2026
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Stream Copy File
Hard
Jan 25, 2026
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Readable Stream Line Counter
Hard
Jan 25, 2026
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Transform Uppercase Stream
Medium
Jan 25, 2026
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Backpressure Idea Demo
Hard
Jan 25, 2026
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JSON Lines Writer
Medium
Jan 25, 2026
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Gzip Compress Text
Hard
Jan 25, 2026
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Decode Base64
Easy
Jan 25, 2026
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Chunked JSON Parse Problem
Hard
Jan 25, 2026
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SHA256 Of Stdin Stream
Hard
Jan 25, 2026
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pipeline Promise
Hard
Jan 25, 2026
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ObjectMode Filter Stream
Hard
Jan 25, 2026
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Buffer.concat Example
Easy
Jan 25, 2026
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Slice Buffer Range
Medium
Jan 25, 2026
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PassThrough Logger
Medium
Jan 25, 2026
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Line Split Transform
Hard
Jan 25, 2026
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Readable From Generator
Medium
Jan 25, 2026
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Count Bytes In File Stream
Hard
Jan 25, 2026
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Download With Stream
Hard
Jan 25, 2026
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