How to debug "EventEmitter memory leak detected. 11 listeners added" with Node?

How to debug “EventEmitter memory leak detected. 11 listeners added” with Node?

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To debug "EventEmitter memory leak detected. 11 listeners added" with Node, we can use the Node --trace=warnings option.

For instance, we run

node --trace-warnings

to trace the source of the warning when we run our app.

By John Au-Yeung