Node.js - Debugging and ProfilingIn Node.js, which of the following scenarios most commonly leads to memory leaks?AStoring references to unused objects in global variablesBUsing asynchronous functions with callbacksCImporting modules multiple timesDUsing the latest ECMAScript syntaxCheck Answer
Step-by-Step SolutionSolution:Step 1: Identify memory leak causesMemory leaks often occur when objects are unintentionally kept in memory.Step 2: Analyze optionsStoring unused objects in global variables prevents garbage collection.Final Answer:Storing references to unused objects in global variables -> Option AQuick Check:Global references block GC [OK]Quick Trick: Unused global references cause leaks [OK]Common Mistakes:Assuming async callbacks cause leaksThinking module imports cause leaksBelieving syntax affects memory leaks
Master "Debugging and Profiling" in Node.js9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallPerf
More Node.js Quizzes Cluster Module - Cluster vs reverse proxy decision - Quiz 4medium Cluster Module - Master and worker processes - Quiz 10hard Cluster Module - Forking workers per CPU core - Quiz 7medium Cluster Module - Forking workers per CPU core - Quiz 4medium Debugging and Profiling - Chrome DevTools for Node.js - Quiz 5medium Debugging and Profiling - Why debugging skills matter - Quiz 2easy Error Handling Patterns - Unhandled rejection handling - Quiz 1easy HTTP Module - Response methods and status codes - Quiz 6medium HTTP Module - Setting response headers - Quiz 8hard Timers and Scheduling - Event loop phases and timer execution - Quiz 14medium