You can use this library to log to the console, log to a file or both. There is an option to log with a stacktrace if needed. In this case when you call require it will create a directory structure and default logging file.
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logz - A Simple Persistent Logger for Node.js
You can use this library to log to the console, log to a file or both. There is an option to log with a stacktrace if needed. In this case when you call require it will create a directory structure and default logging file.
Full article