Suppose I have:
var err = new Error('My error!');
How to get line and file name, where Error was created?
Like in PHP:
$ex = new \Exception();
$ex->getLine();
$ex->getFile();
2 Answers
You can use stack-trace node module. This gives module name and line number
Comments
To get the file name for the current file: use __filename.
To get the folder for the current file: use __dirname
To parse the file from an Error object, you need an Error with a stack property, that hopefully points to files. You would need then to parse the filename and line from the stack string or use a module that does so.
> new Error().stack
Error
at repl:1:1
at sigintHandlersWrap (vm.js:22:35)
at sigintHandlersWrap (vm.js:73:12)
at ContextifyScript.Script.runInThisContext (vm.js:21:12)
at REPLServer.defaultEval (repl.js:346:29)
at bound (domain.js:280:14)
at REPLServer.runBound [as eval] (domain.js:293:12)
at REPLServer.<anonymous> (repl.js:545:10)
at emitOne (events.js:101:20)
at REPLServer.emit (events.js:188:7)
err.stackcan give you the stack trace.