Here are some tips on how to prevent memory leaks in Node.js:

• Avoid using global variables.

o?Global variables are accessible from anywhere in your code, which can make it difficult to track down memory leaks. Instead, use local variables or pass data between functions as parameters.

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• Be careful with closures.

o?Closures can create circular references, which can prevent the garbage collector from freeing up memory. To avoid this, make sure that closures only reference variables that are still in scope.

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• Clean up event listeners and timeouts.

o?When you no longer need an event listener or timeout, be sure to remove it. Otherwise, it will continue to hold a reference to the object that created it, preventing the garbage collector from freeing up memory.

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• Use a memory profiler.

o?A memory profiler can help you identify memory leaks in your code. There are a number of different memory profilers available for Node.js, such as the Chrome DevTools Memory Profiler and the Node.js Profiler.

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• Use the --inspect flag when running your Node.js application.

o?This will enable debugging with Chrome Developer Tools, which can be used to explore memory usage, set breakpoints, and step through code to identify memory leak sources.

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• Use a garbage collection debugger.

o?A garbage collection debugger can help you track down memory leaks by showing you which objects are being held in memory and which objects are no longer being referenced.

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• Use a linter.

o A linter can help you identify potential memory leaks in your code. There are a number of different linters available for Node.js, such as ESLint and JSHint.

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