CODEWITHSUNDEEP
javascriptnode.js
Alexander Mills
Alexander Mills

Reputation: 100506

Log “Warning” instead of “Error” with stack trace

If I use new Error() or new TypeError() I am going to get something that looks like this for a stacktrace:

Error: Live-Mutex client lock request timed out after 6000ms

I am wondering if there is a way to generate a message that starts with "Warning:" instead of "Error:".

I don't think JS offers us new Warning() but I am looking for something like that.

Ultimately, I am looking to pair it with process.emit('warning') like so:

process.emit('warning', new Warning('foo bar baz'));

I need to have a stack trace available.

Upvotes: 1

Views: 195

Answers (1)

faintsignal
faintsignal

Reputation: 1836

I believe you will be able to achieve your goal by using process.emitWarning.

Its first parameter can be either an Error object or simply a string containing your warning message. You may need to use the other parameters to tweak the result if it doesn't immediately meet the needs of your context.

Disclaimer: I have not used this function before. Let us know how it works out.

Upvotes: 1

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